Solve for x
x=\frac{y-5}{2}
Solve for y
y=2x+5
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\frac{x+2}{-3-\left(-2\right)}=\frac{y-1}{-1-1}
The opposite of -2 is 2.
\frac{x+2}{-3+2}=\frac{y-1}{-1-1}
The opposite of -2 is 2.
\frac{x+2}{-1}=\frac{y-1}{-1-1}
Add -3 and 2 to get -1.
-x-2=\frac{y-1}{-1-1}
Anything divided by -1 gives its opposite. To find the opposite of x+2, find the opposite of each term.
-x-2=\frac{y-1}{-2}
Subtract 1 from -1 to get -2.
-x-2=\frac{-y+1}{2}
Multiply both numerator and denominator by -1.
-x-2=-\frac{1}{2}y+\frac{1}{2}
Divide each term of -y+1 by 2 to get -\frac{1}{2}y+\frac{1}{2}.
-x=-\frac{1}{2}y+\frac{1}{2}+2
Add 2 to both sides.
-x=-\frac{1}{2}y+\frac{5}{2}
Add \frac{1}{2} and 2 to get \frac{5}{2}.
-x=\frac{5-y}{2}
The equation is in standard form.
\frac{-x}{-1}=\frac{5-y}{-2}
Divide both sides by -1.
x=\frac{5-y}{-2}
Dividing by -1 undoes the multiplication by -1.
x=\frac{y-5}{2}
Divide \frac{-y+5}{2} by -1.
\frac{x+2}{-3-\left(-2\right)}=\frac{y-1}{-1-1}
The opposite of -2 is 2.
\frac{x+2}{-3+2}=\frac{y-1}{-1-1}
The opposite of -2 is 2.
\frac{x+2}{-1}=\frac{y-1}{-1-1}
Add -3 and 2 to get -1.
-x-2=\frac{y-1}{-1-1}
Anything divided by -1 gives its opposite. To find the opposite of x+2, find the opposite of each term.
-x-2=\frac{y-1}{-2}
Subtract 1 from -1 to get -2.
-x-2=\frac{-y+1}{2}
Multiply both numerator and denominator by -1.
-x-2=-\frac{1}{2}y+\frac{1}{2}
Divide each term of -y+1 by 2 to get -\frac{1}{2}y+\frac{1}{2}.
-\frac{1}{2}y+\frac{1}{2}=-x-2
Swap sides so that all variable terms are on the left hand side.
-\frac{1}{2}y=-x-2-\frac{1}{2}
Subtract \frac{1}{2} from both sides.
-\frac{1}{2}y=-x-\frac{5}{2}
Subtract \frac{1}{2} from -2 to get -\frac{5}{2}.
\frac{-\frac{1}{2}y}{-\frac{1}{2}}=\frac{-x-\frac{5}{2}}{-\frac{1}{2}}
Multiply both sides by -2.
y=\frac{-x-\frac{5}{2}}{-\frac{1}{2}}
Dividing by -\frac{1}{2} undoes the multiplication by -\frac{1}{2}.
y=2x+5
Divide -x-\frac{5}{2} by -\frac{1}{2} by multiplying -x-\frac{5}{2} by the reciprocal of -\frac{1}{2}.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
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]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}