5x+21+8x-36=180

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Solution for 5x+21+8x-36=180 equation:


Simplifying
5x + 21 + 8x + -36 = 180

Reorder the terms:
21 + -36 + 5x + 8x = 180

Combine like terms: 21 + -36 = -15
-15 + 5x + 8x = 180

Combine like terms: 5x + 8x = 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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