(5x+20)+(4x+25)=180

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Solution for (5x+20)+(4x+25)=180 equation:


Simplifying
(5x + 20) + (4x + 25) = 180

Reorder the terms:
(20 + 5x) + (4x + 25) = 180

Remove parenthesis around (20 + 5x)
20 + 5x + (4x + 25) = 180

Reorder the terms:
20 + 5x + (25 + 4x) = 180

Remove parenthesis around (25 + 4x)
20 + 5x + 25 + 4x = 180

Reorder the terms:
20 + 25 + 5x + 4x = 180

Combine like terms: 20 + 25 = 45
45 + 5x + 4x = 180

Combine like terms: 5x + 4x = 9x
45 + 9x = 180

Solving
45 + 9x = 180

Solving for variable 'x'.

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

Add '-45' to each side of the equation.
45 + -45 + 9x = 180 + -45

Combine like terms: 45 + -45 = 0
0 + 9x = 180 + -45
9x = 180 + -45

Combine like terms: 180 + -45 = 135
9x = 135

Divide each side by '9'.
x = 15

Simplifying
x = 15

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