-1x-4=(x+3)+8

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Solution for -1x-4=(x+3)+8 equation:


Simplifying
-1x + -4 = (x + 3) + 8

Reorder the terms:
-4 + -1x = (x + 3) + 8

Reorder the terms:
-4 + -1x = (3 + x) + 8

Remove parenthesis around (3 + x)
-4 + -1x = 3 + x + 8

Reorder the terms:
-4 + -1x = 3 + 8 + x

Combine like terms: 3 + 8 = 11
-4 + -1x = 11 + x

Solving
-4 + -1x = 11 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-4 + -1x + -1x = 11 + x + -1x

Combine like terms: -1x + -1x = -2x
-4 + -2x = 11 + x + -1x

Combine like terms: x + -1x = 0
-4 + -2x = 11 + 0
-4 + -2x = 11

Add '4' to each side of the equation.
-4 + 4 + -2x = 11 + 4

Combine like terms: -4 + 4 = 0
0 + -2x = 11 + 4
-2x = 11 + 4

Combine like terms: 11 + 4 = 15
-2x = 15

Divide each side by '-2'.
x = -7.5

Simplifying
x = -7.5

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