4x+15=x+30

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Solution for 4x+15=x+30 equation:


Simplifying
4x + 15 = x + 30

Reorder the terms:
15 + 4x = x + 30

Reorder the terms:
15 + 4x = 30 + x

Solving
15 + 4x = 30 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
15 + 4x + -1x = 30 + x + -1x

Combine like terms: 4x + -1x = 3x
15 + 3x = 30 + x + -1x

Combine like terms: x + -1x = 0
15 + 3x = 30 + 0
15 + 3x = 30

Add '-15' to each side of the equation.
15 + -15 + 3x = 30 + -15

Combine like terms: 15 + -15 = 0
0 + 3x = 30 + -15
3x = 30 + -15

Combine like terms: 30 + -15 = 15
3x = 15

Divide each side by '3'.
x = 5

Simplifying
x = 5

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