2x-(x-1)=9

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Solution for 2x-(x-1)=9 equation:


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

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

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

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

Solving
1 + 1x = 9

Solving for variable 'x'.

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

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

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

Combine like terms: 9 + -1 = 8
1x = 8

Divide each side by '1'.
x = 8

Simplifying
x = 8

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