12+3(-7x-6)+13x=121

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Solution for 12+3(-7x-6)+13x=121 equation:


Simplifying
12 + 3(-7x + -6) + 13x = 121

Reorder the terms:
12 + 3(-6 + -7x) + 13x = 121
12 + (-6 * 3 + -7x * 3) + 13x = 121
12 + (-18 + -21x) + 13x = 121

Combine like terms: 12 + -18 = -6
-6 + -21x + 13x = 121

Combine like terms: -21x + 13x = -8x
-6 + -8x = 121

Solving
-6 + -8x = 121

Solving for variable 'x'.

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

Add '6' to each side of the equation.
-6 + 6 + -8x = 121 + 6

Combine like terms: -6 + 6 = 0
0 + -8x = 121 + 6
-8x = 121 + 6

Combine like terms: 121 + 6 = 127
-8x = 127

Divide each side by '-8'.
x = -15.875

Simplifying
x = -15.875

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