Solve for z
z = \frac{15}{4} = 3\frac{3}{4} = 3.75
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4z-15=0
Multiply both sides of the equation by 20, the least common multiple of 5,4.
4z=15
Add 15 to both sides. Anything plus zero gives itself.
z=\frac{15}{4}
Divide both sides by 4.
Examples
Quadratic equation
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Linear equation
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Matrix
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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