1.2b-4.2=-10.2

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Solution for 1.2b-4.2=-10.2 equation: 


Simplifying
1.2b + -4.2 = -10.2

Reorder the terms:
-4.2 + 1.2b = -10.2

Solving
-4.2 + 1.2b = -10.2

Solving for variable 'b'.

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

Add '4.2' to each side of the equation.
-4.2 + 4.2 + 1.2b = -10.2 + 4.2

Combine like terms: -4.2 + 4.2 = 0.0
0.0 + 1.2b = -10.2 + 4.2
1.2b = -10.2 + 4.2

Combine like terms: -10.2 + 4.2 = -6
1.2b = -6

Divide each side by '1.2'.
b = -5

Simplifying
b = -5

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