2x-(x-7)=9

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Solution for 2x-(x-7)=9 equation:


Simplifying
2x + -1(x + -7) = 9

Reorder the terms:
2x + -1(-7 + x) = 9
2x + (-7 * -1 + x * -1) = 9
2x + (7 + -1x) = 9

Reorder the terms:
7 + 2x + -1x = 9

Combine like terms: 2x + -1x = 1x
7 + 1x = 9

Solving
7 + 1x = 9

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 = 9 + -7

Combine like terms: 7 + -7 = 0
0 + 1x = 9 + -7
1x = 9 + -7

Combine like terms: 9 + -7 = 2
1x = 2

Divide each side by '1'.
x = 2

Simplifying
x = 2

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