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Nach x auflösen
\left\{\begin{matrix}x=-5y-45\text{, }&y\geq 13\\x\leq -110\text{, }&y=13\end{matrix}\right.
{
x
=
−
5
y
−
4
5
,
x
≤
−
1
1
0
,
y
≥
1
3
y
=
1
3
Nach y auflösen
y=13<br/>y=-\frac{x}{5}-9\text{, }x\leq -110
y
=
1
3
y
=
−
5
x
−
9
,
x
≤
−
1
1
0
Diagramm
Quiz
Algebra
5 ähnliche Probleme wie:
x + 3 y + 71 + | x + 7 y + 19 | = 0
x
+
3
y
+
7
1
+
∣
x
+
7
y
+
1
9
∣
=
0
Ähnliche Aufgaben aus Websuche
Indicating when |x + y + z| = |x| + |y| + |z| holds
Indicating when
∣
x
+
y
+
z
∣
=
∣
x
∣
+
∣
y
∣
+
∣
z
∣
holds
https://math.stackexchange.com/questions/472707/indicating-when-x-y-z-x-y-z-holds
You are correct, but there is a simpler approach. This could be generalized to \left| \sum_k a_k \right| = \sum_k |a_k| if and only if all non-zero elements have the same sign . To prove it, ...
You are correct, but there is a simpler approach. This could be generalized to
∣
∑
k
a
k
∣
=
∑
k
∣
a
k
∣
if and only if all non-zero elements have the same sign . To prove it, ...
How do solve the following linear system?: \displaystyle{11}{x}+{3}{y}+{7}={0},-{6}{x}-{2}{y}=-{8} ?
How do solve the following linear system?:
1
1
x
+
3
y
+
7
=
0
,
−
6
x
−
2
y
=
−
8
?
https://socratic.org/questions/how-do-solve-the-following-linear-system-11x-3y-7-0-6x-2y-8
\displaystyle{x}=-\frac{{19}}{{2}},{y}=\frac{{65}}{{2}} Explanation: Multiplying the first equation by \displaystyle{2} and the second equation by \displaystyle{3} and adding both \displaystyle{4}{x}=-{38} ...
x
=
−
2
1
9
,
y
=
2
6
5
Explanation: Multiplying the first equation by
2
and the second equation by
3
and adding both
4
x
=
−
3
8
...
How do solve the following linear system?: \displaystyle-{9}{x}+{6}{y}=-{2},{11}{x}+{3}{y}+{7}={0} ?
How do solve the following linear system?:
−
9
x
+
6
y
=
−
2
,
1
1
x
+
3
y
+
7
=
0
?
https://socratic.org/questions/how-do-solve-the-following-linear-system-9x-6y-2-11x-3y-7-0
Ricardo A. Jan 26, 2016 1) multiply the second equation by 2 \displaystyle{22}{x}+{6}{y}+{14}={0} 2) set the first equation equal to \displaystyle{0} then make both equations ...
Ricardo A. Jan 26, 2016 1) multiply the second equation by 2
2
2
x
+
6
y
+
1
4
=
0
2) set the first equation equal to
0
then make both equations ...
How do solve the following linear system?: \displaystyle{2}{x}+{5}{y}-{21}={0},{11}{x}+{3}{y}+{7}={0} ?
How do solve the following linear system?:
2
x
+
5
y
−
2
1
=
0
,
1
1
x
+
3
y
+
7
=
0
?
https://socratic.org/questions/how-do-solve-the-following-linear-system-2x-5y-21-0-11x-3y-7-0
See the solution Explanation: By using elimination system Multiply eqn 1 by 3 and eqn 2 by 5 \displaystyle{\left({00}\right)}{6}{x}+{15}{y}=+{63} \displaystyle\underline{{{\left({0}\right)}{55}{x}+{15}{y}=-{\left({0}\right)}{7}}}\leftarrow\ \text{ Subtract} ...
See the solution Explanation: By using elimination system Multiply eqn 1 by 3 and eqn 2 by 5
(
0
0
)
6
x
+
1
5
y
=
+
6
3
(
0
)
5
5
x
+
1
5
y
=
−
(
0
)
7
←
Subtract
...
4x+8y=16;-2x-4y=-24
4
x
+
8
y
=
1
6
;
−
2
x
−
4
y
=
−
2
4
https://www.tiger-algebra.com/drill/4x_8y=16;-2x-4y=-24/
4x+8y=16;-2x-4y=-24 No solution System of Linear Equations entered : [1] 4x + 8y = 16 [2] -2x - 4y = -24 Solve by Substitution : // Solve equation [1] for the variable y [1] 8y = -4x + 16 ...
4x+8y=16;-2x-4y=-24 No solution System of Linear Equations entered : [1] 4x + 8y = 16 [2] -2x - 4y = -24 Solve by Substitution : // Solve equation [1] for the variable y [1] 8y = -4x + 16 ...
3x+7y=23;-3x-7y=-17
3
x
+
7
y
=
2
3
;
−
3
x
−
7
y
=
−
1
7
https://www.tiger-algebra.com/drill/3x_7y=23;-3x-7y=-17/
3x+7y=23;-3x-7y=-17 No solution System of Linear Equations entered : [1] 3x + 7y = 23 [2] -3x - 7y = -17 Solve by Substitution : // Solve equation [1] for the variable y [1] 7y = -3x + 23 ...
3x+7y=23;-3x-7y=-17 No solution System of Linear Equations entered : [1] 3x + 7y = 23 [2] -3x - 7y = -17 Solve by Substitution : // Solve equation [1] for the variable y [1] 7y = -3x + 23 ...
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Beispiele
Quadratische Gleichung
{ x } ^ { 2 } - 4 x - 5 = 0
x
2
−
4
x
−
5
=
0
Trigonometrie
4 \sin \theta \cos \theta = 2 \sin \theta
4
sin
θ
cos
θ
=
2
sin
θ
Lineare Gleichung
y = 3x + 4
y
=
3
x
+
4
Arithmetisch
699 * 533
6
9
9
∗
5
3
3
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
[
2
5
3
4
]
[
2
−
1
0
1
3
5
]
Simultane Gleichung
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
{
8
x
+
2
y
=
4
6
7
x
+
3
y
=
4
7
Differenzierung
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
d
x
d
(
x
−
5
)
(
3
x
2
−
2
)
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
∫
0
1
x
e
−
x
2
d
x
Grenzwerte
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}
x
→
−
3
lim
x
2
+
2
x
−
3
x
2
−
9
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