Solve for y
y=20
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5\times 4=y
Multiply both sides by 4.
20=y
Multiply 5 and 4 to get 20.
y=20
Swap sides so that all variable terms are on the left hand side.
Examples
Quadratic equation
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
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Matrix
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Simultaneous equation
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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