3x-2x=30-x

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Solution for 3x-2x=30-x equation: 


Simplifying
3x + -2x = 30 + -1x

Combine like terms: 3x + -2x = 1x
1x = 30 + -1x

Solving
1x = 30 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
1x + x = 30 + -1x + x

Combine like terms: 1x + x = 2x
2x = 30 + -1x + x

Combine like terms: -1x + x = 0
2x = 30 + 0
2x = 30

Divide each side by '2'.
x = 15

Simplifying
x = 15

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