-99=-7(x+6)-1

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Solution for -99=-7(x+6)-1 equation:


Simplifying
-99 = -7(x + 6) + -1

Reorder the terms:
-99 = -7(6 + x) + -1
-99 = (6 * -7 + x * -7) + -1
-99 = (-42 + -7x) + -1

Reorder the terms:
-99 = -42 + -1 + -7x

Combine like terms: -42 + -1 = -43
-99 = -43 + -7x

Solving
-99 = -43 + -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
-99 + 7x = -43 + -7x + 7x

Combine like terms: -7x + 7x = 0
-99 + 7x = -43 + 0
-99 + 7x = -43

Add '99' to each side of the equation.
-99 + 99 + 7x = -43 + 99

Combine like terms: -99 + 99 = 0
0 + 7x = -43 + 99
7x = -43 + 99

Combine like terms: -43 + 99 = 56
7x = 56

Divide each side by '7'.
x = 8

Simplifying
x = 8

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