7(3+b)=-70

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Solution for 7(3+b)=-70 equation: 


Simplifying
7(3 + b) = -70
(3 * 7 + b * 7) = -70
(21 + 7b) = -70

Solving
21 + 7b = -70

Solving for variable 'b'.

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

Add '-21' to each side of the equation.
21 + -21 + 7b = -70 + -21

Combine like terms: 21 + -21 = 0
0 + 7b = -70 + -21
7b = -70 + -21

Combine like terms: -70 + -21 = -91
7b = -91

Divide each side by '7'.
b = -13

Simplifying
b = -13

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