Solve for x, y, z, a
a=0
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2\times 5+3y-3=7
Consider the first equation. Insert the known values of variables into the equation.
10+3y-3=7
Multiply 2 and 5 to get 10.
7+3y=7
Subtract 3 from 10 to get 7.
3y=7-7
Subtract 7 from both sides.
3y=0
Subtract 7 from 7 to get 0.
y=0
Divide both sides by 3. Zero divided by any non-zero number gives zero.
z=0
Consider the third equation. Insert the known values of variables into the equation.
a=0
Consider the fourth equation. Insert the known values of variables into the equation.
x=5 y=0 z=0 a=0
The system is now solved.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Linear equation
y = 3x + 4
Arithmetic
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Matrix
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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
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