1-8b-7=18

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Solution for 1-8b-7=18 equation: 


Simplifying
1 + -8b + -7 = 18

Reorder the terms:
1 + -7 + -8b = 18

Combine like terms: 1 + -7 = -6
-6 + -8b = 18

Solving
-6 + -8b = 18

Solving for variable 'b'.

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

Add '6' to each side of the equation.
-6 + 6 + -8b = 18 + 6

Combine like terms: -6 + 6 = 0
0 + -8b = 18 + 6
-8b = 18 + 6

Combine like terms: 18 + 6 = 24
-8b = 24

Divide each side by '-8'.
b = -3

Simplifying
b = -3

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