-9=7b+1-3

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Solution for -9=7b+1-3 equation:


Simplifying
-9 = 7b + 1 + -3

Reorder the terms:
-9 = 1 + -3 + 7b

Combine like terms: 1 + -3 = -2
-9 = -2 + 7b

Solving
-9 = -2 + 7b

Solving for variable 'b'.

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

Add '-7b' to each side of the equation.
-9 + -7b = -2 + 7b + -7b

Combine like terms: 7b + -7b = 0
-9 + -7b = -2 + 0
-9 + -7b = -2

Add '9' to each side of the equation.
-9 + 9 + -7b = -2 + 9

Combine like terms: -9 + 9 = 0
0 + -7b = -2 + 9
-7b = -2 + 9

Combine like terms: -2 + 9 = 7
-7b = 7

Divide each side by '-7'.
b = -1

Simplifying
b = -1

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