3x-30=45-2x

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Solution for 3x-30=45-2x equation:


Simplifying
3x + -30 = 45 + -2x

Reorder the terms:
-30 + 3x = 45 + -2x

Solving
-30 + 3x = 45 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
-30 + 3x + 2x = 45 + -2x + 2x

Combine like terms: 3x + 2x = 5x
-30 + 5x = 45 + -2x + 2x

Combine like terms: -2x + 2x = 0
-30 + 5x = 45 + 0
-30 + 5x = 45

Add '30' to each side of the equation.
-30 + 30 + 5x = 45 + 30

Combine like terms: -30 + 30 = 0
0 + 5x = 45 + 30
5x = 45 + 30

Combine like terms: 45 + 30 = 75
5x = 75

Divide each side by '5'.
x = 15

Simplifying
x = 15

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