3x+(60-x)=90

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Solution for 3x+(60-x)=90 equation:


Simplifying
3x + (60 + -1x) = 90

Remove parenthesis around (60 + -1x)
3x + 60 + -1x = 90

Reorder the terms:
60 + 3x + -1x = 90

Combine like terms: 3x + -1x = 2x
60 + 2x = 90

Solving
60 + 2x = 90

Solving for variable 'x'.

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

Add '-60' to each side of the equation.
60 + -60 + 2x = 90 + -60

Combine like terms: 60 + -60 = 0
0 + 2x = 90 + -60
2x = 90 + -60

Combine like terms: 90 + -60 = 30
2x = 30

Divide each side by '2'.
x = 15

Simplifying
x = 15

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