10(-7+b)=20

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Solution for 10(-7+b)=20 equation: 


Simplifying
10(-7 + b) = 20
(-7 * 10 + b * 10) = 20
(-70 + 10b) = 20

Solving
-70 + 10b = 20

Solving for variable 'b'.

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

Add '70' to each side of the equation.
-70 + 70 + 10b = 20 + 70

Combine like terms: -70 + 70 = 0
0 + 10b = 20 + 70
10b = 20 + 70

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

Divide each side by '10'.
b = 9

Simplifying
b = 9

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