Solve for x
x=3
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5x+2-7x=-4
Subtract 7x from both sides.
-2x+2=-4
Combine 5x and -7x to get -2x.
-2x=-4-2
Subtract 2 from both sides.
-2x=-6
Subtract 2 from -4 to get -6.
x=\frac{-6}{-2}
Divide both sides by -2.
x=3
Divide -6 by -2 to get 3.
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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