4(3+x)=5(3x-1)-71

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Solution for 4(3+x)=5(3x-1)-71 equation:


Simplifying
4(3 + x) = 5(3x + -1) + -71
(3 * 4 + x * 4) = 5(3x + -1) + -71
(12 + 4x) = 5(3x + -1) + -71

Reorder the terms:
12 + 4x = 5(-1 + 3x) + -71
12 + 4x = (-1 * 5 + 3x * 5) + -71
12 + 4x = (-5 + 15x) + -71

Reorder the terms:
12 + 4x = -5 + -71 + 15x

Combine like terms: -5 + -71 = -76
12 + 4x = -76 + 15x

Solving
12 + 4x = -76 + 15x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-15x' to each side of the equation.
12 + 4x + -15x = -76 + 15x + -15x

Combine like terms: 4x + -15x = -11x
12 + -11x = -76 + 15x + -15x

Combine like terms: 15x + -15x = 0
12 + -11x = -76 + 0
12 + -11x = -76

Add '-12' to each side of the equation.
12 + -12 + -11x = -76 + -12

Combine like terms: 12 + -12 = 0
0 + -11x = -76 + -12
-11x = -76 + -12

Combine like terms: -76 + -12 = -88
-11x = -88

Divide each side by '-11'.
x = 8

Simplifying
x = 8

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