(x+25)+(3x-20)=120

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Solution for (x+25)+(3x-20)=120 equation:


Simplifying
(x + 25) + (3x + -20) = 120

Reorder the terms:
(25 + x) + (3x + -20) = 120

Remove parenthesis around (25 + x)
25 + x + (3x + -20) = 120

Reorder the terms:
25 + x + (-20 + 3x) = 120

Remove parenthesis around (-20 + 3x)
25 + x + -20 + 3x = 120

Reorder the terms:
25 + -20 + x + 3x = 120

Combine like terms: 25 + -20 = 5
5 + x + 3x = 120

Combine like terms: x + 3x = 4x
5 + 4x = 120

Solving
5 + 4x = 120

Solving for variable 'x'.

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

Add '-5' to each side of the equation.
5 + -5 + 4x = 120 + -5

Combine like terms: 5 + -5 = 0
0 + 4x = 120 + -5
4x = 120 + -5

Combine like terms: 120 + -5 = 115
4x = 115

Divide each side by '4'.
x = 28.75

Simplifying
x = 28.75

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