7b-2-3b=18

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Solution for 7b-2-3b=18 equation: 


Simplifying
7b + -2 + -3b = 18

Reorder the terms:
-2 + 7b + -3b = 18

Combine like terms: 7b + -3b = 4b
-2 + 4b = 18

Solving
-2 + 4b = 18

Solving for variable 'b'.

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

Add '2' to each side of the equation.
-2 + 2 + 4b = 18 + 2

Combine like terms: -2 + 2 = 0
0 + 4b = 18 + 2
4b = 18 + 2

Combine like terms: 18 + 2 = 20
4b = 20

Divide each side by '4'.
b = 5

Simplifying
b = 5

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