13=7-2(3x+1)+4x

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Solution for 13=7-2(3x+1)+4x equation:


Simplifying
13 = 7 + -2(3x + 1) + 4x

Reorder the terms:
13 = 7 + -2(1 + 3x) + 4x
13 = 7 + (1 * -2 + 3x * -2) + 4x
13 = 7 + (-2 + -6x) + 4x

Combine like terms: 7 + -2 = 5
13 = 5 + -6x + 4x

Combine like terms: -6x + 4x = -2x
13 = 5 + -2x

Solving
13 = 5 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
13 + 2x = 5 + -2x + 2x

Combine like terms: -2x + 2x = 0
13 + 2x = 5 + 0
13 + 2x = 5

Add '-13' to each side of the equation.
13 + -13 + 2x = 5 + -13

Combine like terms: 13 + -13 = 0
0 + 2x = 5 + -13
2x = 5 + -13

Combine like terms: 5 + -13 = -8
2x = -8

Divide each side by '2'.
x = -4

Simplifying
x = -4

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