7(3+b)-2b=71

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Solution for 7(3+b)-2b=71 equation:


Simplifying
7(3 + b) + -2b = 71
(3 * 7 + b * 7) + -2b = 71
(21 + 7b) + -2b = 71

Combine like terms: 7b + -2b = 5b
21 + 5b = 71

Solving
21 + 5b = 71

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 + 5b = 71 + -21

Combine like terms: 21 + -21 = 0
0 + 5b = 71 + -21
5b = 71 + -21

Combine like terms: 71 + -21 = 50
5b = 50

Divide each side by '5'.
b = 10

Simplifying
b = 10

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