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5x+40=6\left(2x-7\right)
Use the distributive property to multiply 5 by x+8.
5x+40=12x-42
Use the distributive property to multiply 6 by 2x-7.
5x+40-12x=-42
Subtract 12x from both sides.
-7x+40=-42
Combine 5x and -12x to get -7x.
-7x=-42-40
Subtract 40 from both sides.
-7x=-82
Subtract 40 from -42 to get -82.
x=\frac{-82}{-7}
Divide both sides by -7.
x=\frac{82}{7}
Fraction \frac{-82}{-7} can be simplified to \frac{82}{7} by removing the negative sign from both the numerator and the denominator.