2.5(4+b)=-20

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Solution for 2.5(4+b)=-20 equation: 


Simplifying
2.5(4 + b) = -20
(4 * 2.5 + b * 2.5) = -20
(10 + 2.5b) = -20

Solving
10 + 2.5b = -20

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 + 2.5b = -20 + -10

Combine like terms: 10 + -10 = 0
0 + 2.5b = -20 + -10
2.5b = -20 + -10

Combine like terms: -20 + -10 = -30
2.5b = -30

Divide each side by '2.5'.
b = -12

Simplifying
b = -12

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