10(2+4b)=-20

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Solution for 10(2+4b)=-20 equation: 


Simplifying
10(2 + 4b) = -20
(2 * 10 + 4b * 10) = -20
(20 + 40b) = -20

Solving
20 + 40b = -20

Solving for variable 'b'.

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

Add '-20' to each side of the equation.
20 + -20 + 40b = -20 + -20

Combine like terms: 20 + -20 = 0
0 + 40b = -20 + -20
40b = -20 + -20

Combine like terms: -20 + -20 = -40
40b = -40

Divide each side by '40'.
b = -1

Simplifying
b = -1

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