2(x-7)-9=12

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Solution for 2(x-7)-9=12 equation:


Simplifying
2(x + -7) + -9 = 12

Reorder the terms:
2(-7 + x) + -9 = 12
(-7 * 2 + x * 2) + -9 = 12
(-14 + 2x) + -9 = 12

Reorder the terms:
-14 + -9 + 2x = 12

Combine like terms: -14 + -9 = -23
-23 + 2x = 12

Solving
-23 + 2x = 12

Solving for variable 'x'.

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

Add '23' to each side of the equation.
-23 + 23 + 2x = 12 + 23

Combine like terms: -23 + 23 = 0
0 + 2x = 12 + 23
2x = 12 + 23

Combine like terms: 12 + 23 = 35
2x = 35

Divide each side by '2'.
x = 17.5

Simplifying
x = 17.5

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