7(9+b)=20

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Solution for 7(9+b)=20 equation: 


Simplifying
7(9 + b) = 20
(9 * 7 + b * 7) = 20
(63 + 7b) = 20

Solving
63 + 7b = 20

Solving for variable 'b'.

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

Add '-63' to each side of the equation.
63 + -63 + 7b = 20 + -63

Combine like terms: 63 + -63 = 0
0 + 7b = 20 + -63
7b = 20 + -63

Combine like terms: 20 + -63 = -43
7b = -43

Divide each side by '7'.
b = -6.142857143

Simplifying
b = -6.142857143

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