84=-3(-10+b)

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Solution for 84=-3(-10+b) equation:


Simplifying
84 = -3(-10 + b)
84 = (-10 * -3 + b * -3)
84 = (30 + -3b)

Solving
84 = 30 + -3b

Solving for variable 'b'.

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

Add '3b' to each side of the equation.
84 + 3b = 30 + -3b + 3b

Combine like terms: -3b + 3b = 0
84 + 3b = 30 + 0
84 + 3b = 30

Add '-84' to each side of the equation.
84 + -84 + 3b = 30 + -84

Combine like terms: 84 + -84 = 0
0 + 3b = 30 + -84
3b = 30 + -84

Combine like terms: 30 + -84 = -54
3b = -54

Divide each side by '3'.
b = -18

Simplifying
b = -18

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