2x-(x-9)=15

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Solution for 2x-(x-9)=15 equation:


Simplifying
2x + -1(x + -9) = 15

Reorder the terms:
2x + -1(-9 + x) = 15
2x + (-9 * -1 + x * -1) = 15
2x + (9 + -1x) = 15

Reorder the terms:
9 + 2x + -1x = 15

Combine like terms: 2x + -1x = 1x
9 + 1x = 15

Solving
9 + 1x = 15

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 1x = 15 + -9

Combine like terms: 9 + -9 = 0
0 + 1x = 15 + -9
1x = 15 + -9

Combine like terms: 15 + -9 = 6
1x = 6

Divide each side by '1'.
x = 6

Simplifying
x = 6

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