4x+5x-5=31

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


Simplifying
4x + 5x + -5 = 31

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

Combine like terms: 4x + 5x = 9x
-5 + 9x = 31

Solving
-5 + 9x = 31

Solving for variable 'x'.

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

Add '5' to each side of the equation.
-5 + 5 + 9x = 31 + 5

Combine like terms: -5 + 5 = 0
0 + 9x = 31 + 5
9x = 31 + 5

Combine like terms: 31 + 5 = 36
9x = 36

Divide each side by '9'.
x = 4

Simplifying
x = 4

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