-7(-7-3x)-6x=139

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Solution for -7(-7-3x)-6x=139 equation:


Simplifying
-7(-7 + -3x) + -6x = 139
(-7 * -7 + -3x * -7) + -6x = 139
(49 + 21x) + -6x = 139

Combine like terms: 21x + -6x = 15x
49 + 15x = 139

Solving
49 + 15x = 139

Solving for variable 'x'.

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

Add '-49' to each side of the equation.
49 + -49 + 15x = 139 + -49

Combine like terms: 49 + -49 = 0
0 + 15x = 139 + -49
15x = 139 + -49

Combine like terms: 139 + -49 = 90
15x = 90

Divide each side by '15'.
x = 6

Simplifying
x = 6

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