9(x-1)=4x+31

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Solution for 9(x-1)=4x+31 equation:


Simplifying
9(x + -1) = 4x + 31

Reorder the terms:
9(-1 + x) = 4x + 31
(-1 * 9 + x * 9) = 4x + 31
(-9 + 9x) = 4x + 31

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

Solving
-9 + 9x = 31 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
-9 + 9x + -4x = 31 + 4x + -4x

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

Combine like terms: 4x + -4x = 0
-9 + 5x = 31 + 0
-9 + 5x = 31

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

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

Combine like terms: 31 + 9 = 40
5x = 40

Divide each side by '5'.
x = 8

Simplifying
x = 8

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