-5x+7(3x+20)=-66

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Solution for -5x+7(3x+20)=-66 equation:


Simplifying
-5x + 7(3x + 20) = -66

Reorder the terms:
-5x + 7(20 + 3x) = -66
-5x + (20 * 7 + 3x * 7) = -66
-5x + (140 + 21x) = -66

Reorder the terms:
140 + -5x + 21x = -66

Combine like terms: -5x + 21x = 16x
140 + 16x = -66

Solving
140 + 16x = -66

Solving for variable 'x'.

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

Add '-140' to each side of the equation.
140 + -140 + 16x = -66 + -140

Combine like terms: 140 + -140 = 0
0 + 16x = -66 + -140
16x = -66 + -140

Combine like terms: -66 + -140 = -206
16x = -206

Divide each side by '16'.
x = -12.875

Simplifying
x = -12.875

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