Solve for a
a=-4
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-3+9a=2a-31
Use the distributive property to multiply -3 by 1-3a.
-3+9a-2a=-31
Subtract 2a from both sides.
-3+7a=-31
Combine 9a and -2a to get 7a.
7a=-31+3
Add 3 to both sides.
7a=-28
Add -31 and 3 to get -28.
a=\frac{-28}{7}
Divide both sides by 7.
a=-4
Divide -28 by 7 to get -4.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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