b-(-7.2)=-8.3

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Solution for b-(-7.2)=-8.3 equation: 


Simplifying
b + -1(-7.2) = -8.3

Multiply -1 * -7.2
b + 7.2 = -8.3

Reorder the terms:
7.2 + b = -8.3

Solving
7.2 + b = -8.3

Solving for variable 'b'.

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

Add '-7.2' to each side of the equation.
7.2 + -7.2 + b = -8.3 + -7.2

Combine like terms: 7.2 + -7.2 = 0.0
0.0 + b = -8.3 + -7.2
b = -8.3 + -7.2

Combine like terms: -8.3 + -7.2 = -15.5
b = -15.5

Simplifying
b = -15.5

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