3(10+b)=-30

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Solution for 3(10+b)=-30 equation: 


Simplifying
3(10 + b) = -30
(10 * 3 + b * 3) = -30
(30 + 3b) = -30

Solving
30 + 3b = -30

Solving for variable 'b'.

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

Add '-30' to each side of the equation.
30 + -30 + 3b = -30 + -30

Combine like terms: 30 + -30 = 0
0 + 3b = -30 + -30
3b = -30 + -30

Combine like terms: -30 + -30 = -60
3b = -60

Divide each side by '3'.
b = -20

Simplifying
b = -20

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