Solve for x
x=-\frac{83}{230}\approx -0.360869565
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\left(3x+5\right)\left(4x+7\right)=\left(12x+3\right)\left(x-16\right)
Variable x cannot be equal to any of the values -\frac{5}{3},-\frac{1}{4} since division by zero is not defined. Multiply both sides of the equation by 3\left(3x+5\right)\left(4x+1\right), the least common multiple of 12x+3,3x+5.
12x^{2}+41x+35=\left(12x+3\right)\left(x-16\right)
Use the distributive property to multiply 3x+5 by 4x+7 and combine like terms.
12x^{2}+41x+35=12x^{2}-189x-48
Use the distributive property to multiply 12x+3 by x-16 and combine like terms.
12x^{2}+41x+35-12x^{2}=-189x-48
Subtract 12x^{2} from both sides.
41x+35=-189x-48
Combine 12x^{2} and -12x^{2} to get 0.
41x+35+189x=-48
Add 189x to both sides.
230x+35=-48
Combine 41x and 189x to get 230x.
230x=-48-35
Subtract 35 from both sides.
230x=-83
Subtract 35 from -48 to get -83.
x=\frac{-83}{230}
Divide both sides by 230.
x=-\frac{83}{230}
Fraction \frac{-83}{230} can be rewritten as -\frac{83}{230} by extracting the negative sign.
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