3b+b-7=4

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Solution for 3b+b-7=4 equation: 


Simplifying
3b + b + -7 = 4

Reorder the terms:
-7 + 3b + b = 4

Combine like terms: 3b + b = 4b
-7 + 4b = 4

Solving
-7 + 4b = 4

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 + 4b = 4 + 7

Combine like terms: -7 + 7 = 0
0 + 4b = 4 + 7
4b = 4 + 7

Combine like terms: 4 + 7 = 11
4b = 11

Divide each side by '4'.
b = 2.75

Simplifying
b = 2.75

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