1.2b-7+1.8b=20

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Solution for 1.2b-7+1.8b=20 equation:


Simplifying
1.2b + -7 + 1.8b = 20

Reorder the terms:
-7 + 1.2b + 1.8b = 20

Combine like terms: 1.2b + 1.8b = 3b
-7 + 3b = 20

Solving
-7 + 3b = 20

Solving for variable 'b'.

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

Add '7' to each side of the equation.
-7 + 7 + 3b = 20 + 7

Combine like terms: -7 + 7 = 0
0 + 3b = 20 + 7
3b = 20 + 7

Combine like terms: 20 + 7 = 27
3b = 27

Divide each side by '3'.
b = 9

Simplifying
b = 9

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