2(x-5)-(x+2)=9

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Solution for 2(x-5)-(x+2)=9 equation:


Simplifying
2(x + -5) + -1(x + 2) = 9

Reorder the terms:
2(-5 + x) + -1(x + 2) = 9
(-5 * 2 + x * 2) + -1(x + 2) = 9
(-10 + 2x) + -1(x + 2) = 9

Reorder the terms:
-10 + 2x + -1(2 + x) = 9
-10 + 2x + (2 * -1 + x * -1) = 9
-10 + 2x + (-2 + -1x) = 9

Reorder the terms:
-10 + -2 + 2x + -1x = 9

Combine like terms: -10 + -2 = -12
-12 + 2x + -1x = 9

Combine like terms: 2x + -1x = 1x
-12 + 1x = 9

Solving
-12 + 1x = 9

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 1x = 9 + 12

Combine like terms: -12 + 12 = 0
0 + 1x = 9 + 12
1x = 9 + 12

Combine like terms: 9 + 12 = 21
1x = 21

Divide each side by '1'.
x = 21

Simplifying
x = 21

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