9x-(7x-7)=23

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Solution for 9x-(7x-7)=23 equation:


Simplifying
9x + -1(7x + -7) = 23

Reorder the terms:
9x + -1(-7 + 7x) = 23
9x + (-7 * -1 + 7x * -1) = 23
9x + (7 + -7x) = 23

Reorder the terms:
7 + 9x + -7x = 23

Combine like terms: 9x + -7x = 2x
7 + 2x = 23

Solving
7 + 2x = 23

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 + 2x = 23 + -7

Combine like terms: 7 + -7 = 0
0 + 2x = 23 + -7
2x = 23 + -7

Combine like terms: 23 + -7 = 16
2x = 16

Divide each side by '2'.
x = 8

Simplifying
x = 8

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