3x+15=x+20+x+25

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Solution for 3x+15=x+20+x+25 equation:


Simplifying
3x + 15 = x + 20 + x + 25

Reorder the terms:
15 + 3x = x + 20 + x + 25

Reorder the terms:
15 + 3x = 20 + 25 + x + x

Combine like terms: 20 + 25 = 45
15 + 3x = 45 + x + x

Combine like terms: x + x = 2x
15 + 3x = 45 + 2x

Solving
15 + 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.
15 + 3x + -2x = 45 + 2x + -2x

Combine like terms: 3x + -2x = 1x
15 + 1x = 45 + 2x + -2x

Combine like terms: 2x + -2x = 0
15 + 1x = 45 + 0
15 + 1x = 45

Add '-15' to each side of the equation.
15 + -15 + 1x = 45 + -15

Combine like terms: 15 + -15 = 0
0 + 1x = 45 + -15
1x = 45 + -15

Combine like terms: 45 + -15 = 30
1x = 30

Divide each side by '1'.
x = 30

Simplifying
x = 30

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