2x-(x-7)=12

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Solution for 2x-(x-7)=12 equation:


Simplifying
2x + -1(x + -7) = 12

Reorder the terms:
2x + -1(-7 + x) = 12
2x + (-7 * -1 + x * -1) = 12
2x + (7 + -1x) = 12

Reorder the terms:
7 + 2x + -1x = 12

Combine like terms: 2x + -1x = 1x
7 + 1x = 12

Solving
7 + 1x = 12

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 + 1x = 12 + -7

Combine like terms: 7 + -7 = 0
0 + 1x = 12 + -7
1x = 12 + -7

Combine like terms: 12 + -7 = 5
1x = 5

Divide each side by '1'.
x = 5

Simplifying
x = 5

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