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

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


Simplifying
(5b + -4) + (7b + -8) = 0

Reorder the terms:
(-4 + 5b) + (7b + -8) = 0

Remove parenthesis around (-4 + 5b)
-4 + 5b + (7b + -8) = 0

Reorder the terms:
-4 + 5b + (-8 + 7b) = 0

Remove parenthesis around (-8 + 7b)
-4 + 5b + -8 + 7b = 0

Reorder the terms:
-4 + -8 + 5b + 7b = 0

Combine like terms: -4 + -8 = -12
-12 + 5b + 7b = 0

Combine like terms: 5b + 7b = 12b
-12 + 12b = 0

Solving
-12 + 12b = 0

Solving for variable 'b'.

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

Add '12' to each side of the equation.
-12 + 12 + 12b = 0 + 12

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

Combine like terms: 0 + 12 = 12
12b = 12

Divide each side by '12'.
b = 1

Simplifying
b = 1

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