Solve for y
y=79
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y+2=81
Square both sides of the equation.
y+2-2=81-2
Subtract 2 from both sides of the equation.
y=81-2
Subtracting 2 from itself leaves 0.
y=79
Subtract 2 from 81.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Matrix
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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