-7b-b-b-(-3)=12

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Solution for -7b-b-b-(-3)=12 equation:


Simplifying
-7b + -1b + -1b + -1(-3) = 12

Multiply -1 * -3
-7b + -1b + -1b + 3 = 12

Reorder the terms:
3 + -7b + -1b + -1b = 12

Combine like terms: -7b + -1b = -8b
3 + -8b + -1b = 12

Combine like terms: -8b + -1b = -9b
3 + -9b = 12

Solving
3 + -9b = 12

Solving for variable 'b'.

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

Add '-3' to each side of the equation.
3 + -3 + -9b = 12 + -3

Combine like terms: 3 + -3 = 0
0 + -9b = 12 + -3
-9b = 12 + -3

Combine like terms: 12 + -3 = 9
-9b = 9

Divide each side by '-9'.
b = -1

Simplifying
b = -1

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