2b-10-7b=30

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Solution for 2b-10-7b=30 equation: 


Simplifying
2b + -10 + -7b = 30

Reorder the terms:
-10 + 2b + -7b = 30

Combine like terms: 2b + -7b = -5b
-10 + -5b = 30

Solving
-10 + -5b = 30

Solving for variable 'b'.

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

Add '10' to each side of the equation.
-10 + 10 + -5b = 30 + 10

Combine like terms: -10 + 10 = 0
0 + -5b = 30 + 10
-5b = 30 + 10

Combine like terms: 30 + 10 = 40
-5b = 40

Divide each side by '-5'.
b = -8

Simplifying
b = -8

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