Solve for x
x=12
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2x-x-3=9
To find the opposite of x+3, find the opposite of each term.
x-3=9
Combine 2x and -x to get x.
x=9+3
Add 3 to both sides.
x=12
Add 9 and 3 to get 12.
Examples
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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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