3x-9+7x-3+3x-3=180

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Solution for 3x-9+7x-3+3x-3=180 equation:


Simplifying
3x + -9 + 7x + -3 + 3x + -3 = 180

Reorder the terms:
-9 + -3 + -3 + 3x + 7x + 3x = 180

Combine like terms: -9 + -3 = -12
-12 + -3 + 3x + 7x + 3x = 180

Combine like terms: -12 + -3 = -15
-15 + 3x + 7x + 3x = 180

Combine like terms: 3x + 7x = 10x
-15 + 10x + 3x = 180

Combine like terms: 10x + 3x = 13x
-15 + 13x = 180

Solving
-15 + 13x = 180

Solving for variable 'x'.

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

Add '15' to each side of the equation.
-15 + 15 + 13x = 180 + 15

Combine like terms: -15 + 15 = 0
0 + 13x = 180 + 15
13x = 180 + 15

Combine like terms: 180 + 15 = 195
13x = 195

Divide each side by '13'.
x = 15

Simplifying
x = 15

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