2x+15=3(20-x)

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Solution for 2x+15=3(20-x) equation:


Simplifying
2x + 15 = 3(20 + -1x)

Reorder the terms:
15 + 2x = 3(20 + -1x)
15 + 2x = (20 * 3 + -1x * 3)
15 + 2x = (60 + -3x)

Solving
15 + 2x = 60 + -3x

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
15 + 2x + 3x = 60 + -3x + 3x

Combine like terms: 2x + 3x = 5x
15 + 5x = 60 + -3x + 3x

Combine like terms: -3x + 3x = 0
15 + 5x = 60 + 0
15 + 5x = 60

Add '-15' to each side of the equation.
15 + -15 + 5x = 60 + -15

Combine like terms: 15 + -15 = 0
0 + 5x = 60 + -15
5x = 60 + -15

Combine like terms: 60 + -15 = 45
5x = 45

Divide each side by '5'.
x = 9

Simplifying
x = 9

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