(3x-5)+(5x+20)=135

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Solution for (3x-5)+(5x+20)=135 equation:


Simplifying
(3x + -5) + (5x + 20) = 135

Reorder the terms:
(-5 + 3x) + (5x + 20) = 135

Remove parenthesis around (-5 + 3x)
-5 + 3x + (5x + 20) = 135

Reorder the terms:
-5 + 3x + (20 + 5x) = 135

Remove parenthesis around (20 + 5x)
-5 + 3x + 20 + 5x = 135

Reorder the terms:
-5 + 20 + 3x + 5x = 135

Combine like terms: -5 + 20 = 15
15 + 3x + 5x = 135

Combine like terms: 3x + 5x = 8x
15 + 8x = 135

Solving
15 + 8x = 135

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 + 8x = 135 + -15

Combine like terms: 15 + -15 = 0
0 + 8x = 135 + -15
8x = 135 + -15

Combine like terms: 135 + -15 = 120
8x = 120

Divide each side by '8'.
x = 15

Simplifying
x = 15

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