3x-15+x=13

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Solution for 3x-15+x=13 equation:


Simplifying
3x + -15 + x = 13

Reorder the terms:
-15 + 3x + x = 13

Combine like terms: 3x + x = 4x
-15 + 4x = 13

Solving
-15 + 4x = 13

Solving for variable 'x'.

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

Add '15' to each side of the equation.
-15 + 15 + 4x = 13 + 15

Combine like terms: -15 + 15 = 0
0 + 4x = 13 + 15
4x = 13 + 15

Combine like terms: 13 + 15 = 28
4x = 28

Divide each side by '4'.
x = 7

Simplifying
x = 7

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