Solve for x
x=8
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x-20=-12
Multiply both sides of the equation by 4.
x=-12+20
Add 20 to both sides.
x=8
Add -12 and 20 to get 8.
Examples
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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 ) }
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Limits
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