-30=4+7+(b-3)

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Solution for -30=4+7+(b-3) equation: 


Simplifying
-30 = 4 + 7 + (b + -3)

Reorder the terms:
-30 = 4 + 7 + (-3 + b)

Remove parenthesis around (-3 + b)
-30 = 4 + 7 + -3 + b

Combine like terms: 4 + 7 = 11
-30 = 11 + -3 + b

Combine like terms: 11 + -3 = 8
-30 = 8 + b

Solving
-30 = 8 + b

Solving for variable 'b'.

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

Add '-1b' to each side of the equation.
-30 + -1b = 8 + b + -1b

Combine like terms: b + -1b = 0
-30 + -1b = 8 + 0
-30 + -1b = 8

Add '30' to each side of the equation.
-30 + 30 + -1b = 8 + 30

Combine like terms: -30 + 30 = 0
0 + -1b = 8 + 30
-1b = 8 + 30

Combine like terms: 8 + 30 = 38
-1b = 38

Divide each side by '-1'.
b = -38

Simplifying
b = -38

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