45-15=20x-10x

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Solution for 45-15=20x-10x equation:


Simplifying
45 + -15 = 20x + -10x

Combine like terms: 45 + -15 = 30
30 = 20x + -10x

Combine like terms: 20x + -10x = 10x
30 = 10x

Solving
30 = 10x

Solving for variable 'x'.

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

Add '-10x' to each side of the equation.
30 + -10x = 10x + -10x

Combine like terms: 10x + -10x = 0
30 + -10x = 0

Add '-30' to each side of the equation.
30 + -30 + -10x = 0 + -30

Combine like terms: 30 + -30 = 0
0 + -10x = 0 + -30
-10x = 0 + -30

Combine like terms: 0 + -30 = -30
-10x = -30

Divide each side by '-10'.
x = 3

Simplifying
x = 3

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