Solve for z
z=8
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-\frac{1}{4}z=3-5
Subtract 5 from both sides.
-\frac{1}{4}z=-2
Subtract 5 from 3 to get -2.
z=-2\left(-4\right)
Multiply both sides by -4, the reciprocal of -\frac{1}{4}.
z=8
Multiply -2 and -4 to get 8.
Examples
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y = 3x + 4
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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
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Limits
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