Solve for x
x=10
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-5x-20=-7x
Use the distributive property to multiply -5 by x+4.
-5x-20+7x=0
Add 7x to both sides.
2x-20=0
Combine -5x and 7x to get 2x.
2x=20
Add 20 to both sides. Anything plus zero gives itself.
x=\frac{20}{2}
Divide both sides by 2.
x=10
Divide 20 by 2 to get 10.
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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 ) }
Integration
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Limits
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