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\left(x+13\right)\times 70x+\left(10x+5\right)\times 61=35\left(x+13\right)\left(2x+1\right)
Variable x cannot be equal to any of the values -13,-\frac{1}{2} since division by zero is not defined. Multiply both sides of the equation by 5\left(x+13\right)\left(2x+1\right), the least common multiple of 10x+5,x+13.
\left(70x+910\right)x+\left(10x+5\right)\times 61=35\left(x+13\right)\left(2x+1\right)
Use the distributive property to multiply x+13 by 70.
70x^{2}+910x+\left(10x+5\right)\times 61=35\left(x+13\right)\left(2x+1\right)
Use the distributive property to multiply 70x+910 by x.
70x^{2}+910x+610x+305=35\left(x+13\right)\left(2x+1\right)
Use the distributive property to multiply 10x+5 by 61.
70x^{2}+1520x+305=35\left(x+13\right)\left(2x+1\right)
Combine 910x and 610x to get 1520x.
70x^{2}+1520x+305=\left(35x+455\right)\left(2x+1\right)
Use the distributive property to multiply 35 by x+13.
70x^{2}+1520x+305=70x^{2}+945x+455
Use the distributive property to multiply 35x+455 by 2x+1 and combine like terms.
70x^{2}+1520x+305-70x^{2}=945x+455
Subtract 70x^{2} from both sides.
1520x+305=945x+455
Combine 70x^{2} and -70x^{2} to get 0.
1520x+305-945x=455
Subtract 945x from both sides.
575x+305=455
Combine 1520x and -945x to get 575x.
575x=455-305
Subtract 305 from both sides.
575x=150
Subtract 305 from 455 to get 150.
x=\frac{150}{575}
Divide both sides by 575.
x=\frac{6}{23}
Reduce the fraction \frac{150}{575} to lowest terms by extracting and canceling out 25.