3x+(x+5)=125

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Solution for 3x+(x+5)=125 equation:


Simplifying
3x + (x + 5) = 125

Reorder the terms:
3x + (5 + x) = 125

Remove parenthesis around (5 + x)
3x + 5 + x = 125

Reorder the terms:
5 + 3x + x = 125

Combine like terms: 3x + x = 4x
5 + 4x = 125

Solving
5 + 4x = 125

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 = 125 + -5

Combine like terms: 5 + -5 = 0
0 + 4x = 125 + -5
4x = 125 + -5

Combine like terms: 125 + -5 = 120
4x = 120

Divide each side by '4'.
x = 30

Simplifying
x = 30

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