-b+4b+7=8b-b-5

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Solution for -b+4b+7=8b-b-5 equation:


Simplifying
-1b + 4b + 7 = 8b + -1b + -5

Reorder the terms:
7 + -1b + 4b = 8b + -1b + -5

Combine like terms: -1b + 4b = 3b
7 + 3b = 8b + -1b + -5

Reorder the terms:
7 + 3b = -5 + 8b + -1b

Combine like terms: 8b + -1b = 7b
7 + 3b = -5 + 7b

Solving
7 + 3b = -5 + 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.
7 + 3b + -7b = -5 + 7b + -7b

Combine like terms: 3b + -7b = -4b
7 + -4b = -5 + 7b + -7b

Combine like terms: 7b + -7b = 0
7 + -4b = -5 + 0
7 + -4b = -5

Add '-7' to each side of the equation.
7 + -7 + -4b = -5 + -7

Combine like terms: 7 + -7 = 0
0 + -4b = -5 + -7
-4b = -5 + -7

Combine like terms: -5 + -7 = -12
-4b = -12

Divide each side by '-4'.
b = 3

Simplifying
b = 3

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