2x-(-7x+7)=140

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Solution for 2x-(-7x+7)=140 equation:


Simplifying
2x + -1(-7x + 7) = 140

Reorder the terms:
2x + -1(7 + -7x) = 140
2x + (7 * -1 + -7x * -1) = 140
2x + (-7 + 7x) = 140

Reorder the terms:
-7 + 2x + 7x = 140

Combine like terms: 2x + 7x = 9x
-7 + 9x = 140

Solving
-7 + 9x = 140

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + 7 + 9x = 140 + 7

Combine like terms: -7 + 7 = 0
0 + 9x = 140 + 7
9x = 140 + 7

Combine like terms: 140 + 7 = 147
9x = 147

Divide each side by '9'.
x = 16.33333333

Simplifying
x = 16.33333333

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