Solve for w
w=21
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w-15=6
Multiply both sides of the equation by 3.
w=6+15
Add 15 to both sides.
w=21
Add 6 and 15 to get 21.
Examples
Quadratic 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 ) }
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Limits
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