7(2x+5)-4=-81

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Solution for 7(2x+5)-4=-81 equation:


Simplifying
7(2x + 5) + -4 = -81

Reorder the terms:
7(5 + 2x) + -4 = -81
(5 * 7 + 2x * 7) + -4 = -81
(35 + 14x) + -4 = -81

Reorder the terms:
35 + -4 + 14x = -81

Combine like terms: 35 + -4 = 31
31 + 14x = -81

Solving
31 + 14x = -81

Solving for variable 'x'.

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

Add '-31' to each side of the equation.
31 + -31 + 14x = -81 + -31

Combine like terms: 31 + -31 = 0
0 + 14x = -81 + -31
14x = -81 + -31

Combine like terms: -81 + -31 = -112
14x = -112

Divide each side by '14'.
x = -8

Simplifying
x = -8

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