# 7b-4.2=3b+9.1

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## Solution for 7b-4.2=3b+9.1 equation:

Simplifying
7b + -4.2 = 3b + 9.1
Reorder the terms:
-4.2 + 7b = 3b + 9.1
Reorder the terms:
-4.2 + 7b = 9.1 + 3b
Solving
-4.2 + 7b = 9.1 + 3b
Solving for variable 'b'.
Move all terms containing b to the left, all other terms to the right.
Add '-3b' to each side of the equation.
-4.2 + 7b + -3b = 9.1 + 3b + -3b
Combine like terms: 7b + -3b = 4b
-4.2 + 4b = 9.1 + 3b + -3b
Combine like terms: 3b + -3b = 0
-4.2 + 4b = 9.1 + 0
-4.2 + 4b = 9.1
Add '4.2' to each side of the equation.
-4.2 + 4.2 + 4b = 9.1 + 4.2
Combine like terms: -4.2 + 4.2 = 0.0
0.0 + 4b = 9.1 + 4.2
4b = 9.1 + 4.2
Combine like terms: 9.1 + 4.2 = 13.3
4b = 13.3
Divide each side by '4'.
b = 3.325
Simplifying
b = 3.325`

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