2-5x+7x+4=31

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Solution for 2-5x+7x+4=31 equation:


Simplifying
2 + -5x + 7x + 4 = 31

Reorder the terms:
2 + 4 + -5x + 7x = 31

Combine like terms: 2 + 4 = 6
6 + -5x + 7x = 31

Combine like terms: -5x + 7x = 2x
6 + 2x = 31

Solving
6 + 2x = 31

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + 2x = 31 + -6

Combine like terms: 6 + -6 = 0
0 + 2x = 31 + -6
2x = 31 + -6

Combine like terms: 31 + -6 = 25
2x = 25

Divide each side by '2'.
x = 12.5

Simplifying
x = 12.5

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