Solve for x
x=-14
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7+4x=x-\left(7-2x\right)
Subtract 5 from 12 to get 7.
7+4x=x-7-\left(-2x\right)
To find the opposite of 7-2x, find the opposite of each term.
7+4x=x-7+2x
The opposite of -2x is 2x.
7+4x=3x-7
Combine x and 2x to get 3x.
7+4x-3x=-7
Subtract 3x from both sides.
7+x=-7
Combine 4x and -3x to get x.
x=-7-7
Subtract 7 from both sides.
x=-14
Subtract 7 from -7 to get -14.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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