15+3x+x=23

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Solution for 15+3x+x=23 equation: 


Simplifying
15 + 3x + x = 23

Combine like terms: 3x + x = 4x
15 + 4x = 23

Solving
15 + 4x = 23

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 = 23 + -15

Combine like terms: 15 + -15 = 0
0 + 4x = 23 + -15
4x = 23 + -15

Combine like terms: 23 + -15 = 8
4x = 8

Divide each side by '4'.
x = 2

Simplifying
x = 2

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