3x+5x+15=16+31

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Solution for 3x+5x+15=16+31 equation:


Simplifying
3x + 5x + 15 = 16 + 31

Reorder the terms:
15 + 3x + 5x = 16 + 31

Combine like terms: 3x + 5x = 8x
15 + 8x = 16 + 31

Combine like terms: 16 + 31 = 47
15 + 8x = 47

Solving
15 + 8x = 47

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 + 8x = 47 + -15

Combine like terms: 15 + -15 = 0
0 + 8x = 47 + -15
8x = 47 + -15

Combine like terms: 47 + -15 = 32
8x = 32

Divide each side by '8'.
x = 4

Simplifying
x = 4

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