-3.6b-7.2=12.7-6.1b

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Solution for -3.6b-7.2=12.7-6.1b equation: 


Simplifying
-3.6b + -7.2 = 12.7 + -6.1b

Reorder the terms:
-7.2 + -3.6b = 12.7 + -6.1b

Solving
-7.2 + -3.6b = 12.7 + -6.1b

Solving for variable 'b'.

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

Add '6.1b' to each side of the equation.
-7.2 + -3.6b + 6.1b = 12.7 + -6.1b + 6.1b

Combine like terms: -3.6b + 6.1b = 2.5b
-7.2 + 2.5b = 12.7 + -6.1b + 6.1b

Combine like terms: -6.1b + 6.1b = 0.0
-7.2 + 2.5b = 12.7 + 0.0
-7.2 + 2.5b = 12.7

Add '7.2' to each side of the equation.
-7.2 + 7.2 + 2.5b = 12.7 + 7.2

Combine like terms: -7.2 + 7.2 = 0.0
0.0 + 2.5b = 12.7 + 7.2
2.5b = 12.7 + 7.2

Combine like terms: 12.7 + 7.2 = 19.9
2.5b = 19.9

Divide each side by '2.5'.
b = 7.96

Simplifying
b = 7.96

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