12-3(5x-7)-4x=71

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Solution for 12-3(5x-7)-4x=71 equation:


Simplifying
12 + -3(5x + -7) + -4x = 71

Reorder the terms:
12 + -3(-7 + 5x) + -4x = 71
12 + (-7 * -3 + 5x * -3) + -4x = 71
12 + (21 + -15x) + -4x = 71

Combine like terms: 12 + 21 = 33
33 + -15x + -4x = 71

Combine like terms: -15x + -4x = -19x
33 + -19x = 71

Solving
33 + -19x = 71

Solving for variable 'x'.

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

Add '-33' to each side of the equation.
33 + -33 + -19x = 71 + -33

Combine like terms: 33 + -33 = 0
0 + -19x = 71 + -33
-19x = 71 + -33

Combine like terms: 71 + -33 = 38
-19x = 38

Divide each side by '-19'.
x = -2

Simplifying
x = -2

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