Solve for x
x=-\frac{1}{3}\approx -0.333333333
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3x\times 4+5=-3x
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 3x.
12x+5=-3x
Multiply 3 and 4 to get 12.
12x+5+3x=0
Add 3x to both sides.
15x+5=0
Combine 12x and 3x to get 15x.
15x=-5
Subtract 5 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-5}{15}
Divide both sides by 15.
x=-\frac{1}{3}
Reduce the fraction \frac{-5}{15} to lowest terms by extracting and canceling out 5.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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