10(5+7x)+9(11-8x)=131

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Solution for 10(5+7x)+9(11-8x)=131 equation:


Simplifying
10(5 + 7x) + 9(11 + -8x) = 131
(5 * 10 + 7x * 10) + 9(11 + -8x) = 131
(50 + 70x) + 9(11 + -8x) = 131
50 + 70x + (11 * 9 + -8x * 9) = 131
50 + 70x + (99 + -72x) = 131

Reorder the terms:
50 + 99 + 70x + -72x = 131

Combine like terms: 50 + 99 = 149
149 + 70x + -72x = 131

Combine like terms: 70x + -72x = -2x
149 + -2x = 131

Solving
149 + -2x = 131

Solving for variable 'x'.

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

Add '-149' to each side of the equation.
149 + -149 + -2x = 131 + -149

Combine like terms: 149 + -149 = 0
0 + -2x = 131 + -149
-2x = 131 + -149

Combine like terms: 131 + -149 = -18
-2x = -18

Divide each side by '-2'.
x = 9

Simplifying
x = 9

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