-30=-15+b

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Solution for -30=-15+b equation:


Simplifying
-30 = -15 + b

Solving
-30 = -15 + 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 = -15 + b + -1b

Combine like terms: b + -1b = 0
-30 + -1b = -15 + 0
-30 + -1b = -15

Add '30' to each side of the equation.
-30 + 30 + -1b = -15 + 30

Combine like terms: -30 + 30 = 0
0 + -1b = -15 + 30
-1b = -15 + 30

Combine like terms: -15 + 30 = 15
-1b = 15

Divide each side by '-1'.
b = -15

Simplifying
b = -15

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