8(3-2x)+20x-9=31

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Solution for 8(3-2x)+20x-9=31 equation: 


Simplifying
8(3 + -2x) + 20x + -9 = 31
(3 * 8 + -2x * 8) + 20x + -9 = 31
(24 + -16x) + 20x + -9 = 31

Reorder the terms:
24 + -9 + -16x + 20x = 31

Combine like terms: 24 + -9 = 15
15 + -16x + 20x = 31

Combine like terms: -16x + 20x = 4x
15 + 4x = 31

Solving
15 + 4x = 31

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + 4x = 31 + -15

Combine like terms: 15 + -15 = 0
0 + 4x = 31 + -15
4x = 31 + -15

Combine like terms: 31 + -15 = 16
4x = 16

Divide each side by '4'.
x = 4

Simplifying
x = 4

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