3x+15+5x-13=4x+31

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Solution for 3x+15+5x-13=4x+31 equation:


Simplifying
3x + 15 + 5x + -13 = 4x + 31

Reorder the terms:
15 + -13 + 3x + 5x = 4x + 31

Combine like terms: 15 + -13 = 2
2 + 3x + 5x = 4x + 31

Combine like terms: 3x + 5x = 8x
2 + 8x = 4x + 31

Reorder the terms:
2 + 8x = 31 + 4x

Solving
2 + 8x = 31 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
2 + 8x + -4x = 31 + 4x + -4x

Combine like terms: 8x + -4x = 4x
2 + 4x = 31 + 4x + -4x

Combine like terms: 4x + -4x = 0
2 + 4x = 31 + 0
2 + 4x = 31

Add '-2' to each side of the equation.
2 + -2 + 4x = 31 + -2

Combine like terms: 2 + -2 = 0
0 + 4x = 31 + -2
4x = 31 + -2

Combine like terms: 31 + -2 = 29
4x = 29

Divide each side by '4'.
x = 7.25

Simplifying
x = 7.25

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