18=5-(x+8)

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Solution for 18=5-(x+8) equation:


Simplifying
18 = 5 + -1(x + 8)

Reorder the terms:
18 = 5 + -1(8 + x)
18 = 5 + (8 * -1 + x * -1)
18 = 5 + (-8 + -1x)

Combine like terms: 5 + -8 = -3
18 = -3 + -1x

Solving
18 = -3 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
18 + x = -3 + -1x + x

Combine like terms: -1x + x = 0
18 + x = -3 + 0
18 + x = -3

Add '-18' to each side of the equation.
18 + -18 + x = -3 + -18

Combine like terms: 18 + -18 = 0
0 + x = -3 + -18
x = -3 + -18

Combine like terms: -3 + -18 = -21
x = -21

Simplifying
x = -21

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