-3b+7.2=21.6

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Solution for -3b+7.2=21.6 equation:


Simplifying
-3b + 7.2 = 21.6

Reorder the terms:
7.2 + -3b = 21.6

Solving
7.2 + -3b = 21.6

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 + -3b = 21.6 + -7.2

Combine like terms: 7.2 + -7.2 = 0.0
0.0 + -3b = 21.6 + -7.2
-3b = 21.6 + -7.2

Combine like terms: 21.6 + -7.2 = 14.4
-3b = 14.4

Divide each side by '-3'.
b = -4.8

Simplifying
b = -4.8

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