10(b+9)=20

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Solution for 10(b+9)=20 equation:


Simplifying
10(b + 9) = 20

Reorder the terms:
10(9 + b) = 20
(9 * 10 + b * 10) = 20
(90 + 10b) = 20

Solving
90 + 10b = 20

Solving for variable 'b'.

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

Add '-90' to each side of the equation.
90 + -90 + 10b = 20 + -90

Combine like terms: 90 + -90 = 0
0 + 10b = 20 + -90
10b = 20 + -90

Combine like terms: 20 + -90 = -70
10b = -70

Divide each side by '10'.
b = -7

Simplifying
b = -7

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