5(x-12)+2(x+15)=x-9

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Solution for 5(x-12)+2(x+15)=x-9 equation:


Simplifying
5(x + -12) + 2(x + 15) = x + -9

Reorder the terms:
5(-12 + x) + 2(x + 15) = x + -9
(-12 * 5 + x * 5) + 2(x + 15) = x + -9
(-60 + 5x) + 2(x + 15) = x + -9

Reorder the terms:
-60 + 5x + 2(15 + x) = x + -9
-60 + 5x + (15 * 2 + x * 2) = x + -9
-60 + 5x + (30 + 2x) = x + -9

Reorder the terms:
-60 + 30 + 5x + 2x = x + -9

Combine like terms: -60 + 30 = -30
-30 + 5x + 2x = x + -9

Combine like terms: 5x + 2x = 7x
-30 + 7x = x + -9

Reorder the terms:
-30 + 7x = -9 + x

Solving
-30 + 7x = -9 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-30 + 7x + -1x = -9 + x + -1x

Combine like terms: 7x + -1x = 6x
-30 + 6x = -9 + x + -1x

Combine like terms: x + -1x = 0
-30 + 6x = -9 + 0
-30 + 6x = -9

Add '30' to each side of the equation.
-30 + 30 + 6x = -9 + 30

Combine like terms: -30 + 30 = 0
0 + 6x = -9 + 30
6x = -9 + 30

Combine like terms: -9 + 30 = 21
6x = 21

Divide each side by '6'.
x = 3.5

Simplifying
x = 3.5

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