4x-9+7x=31

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Solution for 4x-9+7x=31 equation:


Simplifying
4x + -9 + 7x = 31

Reorder the terms:
-9 + 4x + 7x = 31

Combine like terms: 4x + 7x = 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 = 40
11x = 40

Divide each side by '11'.
x = 3.636363636

Simplifying
x = 3.636363636

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