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3x-5-10x+40=20+4x
Use the distributive property to multiply -5 by 2x-8.
-7x-5+40=20+4x
Combine 3x and -10x to get -7x.
-7x+35=20+4x
Add -5 and 40 to get 35.
-7x+35-4x=20
Subtract 4x from both sides.
-11x+35=20
Combine -7x and -4x to get -11x.
-11x=20-35
Subtract 35 from both sides.
-11x=-15
Subtract 35 from 20 to get -15.
x=\frac{-15}{-11}
Divide both sides by -11.
x=\frac{15}{11}
Fraction \frac{-15}{-11} can be simplified to \frac{15}{11} by removing the negative sign from both the numerator and the denominator.