Solve for x
x=5
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9x-20+3x=40
Add 3x to both sides.
12x-20=40
Combine 9x and 3x to get 12x.
12x=40+20
Add 20 to both sides.
12x=60
Add 40 and 20 to get 60.
x=\frac{60}{12}
Divide both sides by 12.
x=5
Divide 60 by 12 to get 5.
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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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