3x+7+8x+2=31

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Solution for 3x+7+8x+2=31 equation:


Simplifying
3x + 7 + 8x + 2 = 31

Reorder the terms:
7 + 2 + 3x + 8x = 31

Combine like terms: 7 + 2 = 9
9 + 3x + 8x = 31

Combine like terms: 3x + 8x = 11x
9 + 11x = 31

Solving
9 + 11x = 31

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 11x = 31 + -9

Combine like terms: 9 + -9 = 0
0 + 11x = 31 + -9
11x = 31 + -9

Combine like terms: 31 + -9 = 22
11x = 22

Divide each side by '11'.
x = 2

Simplifying
x = 2

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