4x+6-9=31

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Solution for 4x+6-9=31 equation: 


Simplifying
4x + 6 + -9 = 31

Reorder the terms:
6 + -9 + 4x = 31

Combine like terms: 6 + -9 = -3
-3 + 4x = 31

Solving
-3 + 4x = 31

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + 4x = 31 + 3

Combine like terms: -3 + 3 = 0
0 + 4x = 31 + 3
4x = 31 + 3

Combine like terms: 31 + 3 = 34
4x = 34

Divide each side by '4'.
x = 8.5

Simplifying
x = 8.5

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