31-3(2x+1)=4(3-x)

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Solution for 31-3(2x+1)=4(3-x) equation:


Simplifying
31 + -3(2x + 1) = 4(3 + -1x)

Reorder the terms:
31 + -3(1 + 2x) = 4(3 + -1x)
31 + (1 * -3 + 2x * -3) = 4(3 + -1x)
31 + (-3 + -6x) = 4(3 + -1x)

Combine like terms: 31 + -3 = 28
28 + -6x = 4(3 + -1x)
28 + -6x = (3 * 4 + -1x * 4)
28 + -6x = (12 + -4x)

Solving
28 + -6x = 12 + -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.
28 + -6x + 4x = 12 + -4x + 4x

Combine like terms: -6x + 4x = -2x
28 + -2x = 12 + -4x + 4x

Combine like terms: -4x + 4x = 0
28 + -2x = 12 + 0
28 + -2x = 12

Add '-28' to each side of the equation.
28 + -28 + -2x = 12 + -28

Combine like terms: 28 + -28 = 0
0 + -2x = 12 + -28
-2x = 12 + -28

Combine like terms: 12 + -28 = -16
-2x = -16

Divide each side by '-2'.
x = 8

Simplifying
x = 8

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