5-2.8=0.8b+1.2

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Solution for 5-2.8=0.8b+1.2 equation: 


Simplifying
5 + -2.8 = 0.8b + 1.2

Combine like terms: 5 + -2.8 = 2.2
2.2 = 0.8b + 1.2

Reorder the terms:
2.2 = 1.2 + 0.8b

Solving
2.2 = 1.2 + 0.8b

Solving for variable 'b'.

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

Add '-0.8b' to each side of the equation.
2.2 + -0.8b = 1.2 + 0.8b + -0.8b

Combine like terms: 0.8b + -0.8b = 0.0
2.2 + -0.8b = 1.2 + 0.0
2.2 + -0.8b = 1.2

Add '-2.2' to each side of the equation.
2.2 + -2.2 + -0.8b = 1.2 + -2.2

Combine like terms: 2.2 + -2.2 = 0.0
0.0 + -0.8b = 1.2 + -2.2
-0.8b = 1.2 + -2.2

Combine like terms: 1.2 + -2.2 = -1
-0.8b = -1

Divide each side by '-0.8'.
b = 1.25

Simplifying
b = 1.25

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