-3(7+2b)+b=2b+7

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


Simplifying
-3(7 + 2b) + b = 2b + 7
(7 * -3 + 2b * -3) + b = 2b + 7
(-21 + -6b) + b = 2b + 7

Combine like terms: -6b + b = -5b
-21 + -5b = 2b + 7

Reorder the terms:
-21 + -5b = 7 + 2b

Solving
-21 + -5b = 7 + 2b

Solving for variable 'b'.

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

Add '-2b' to each side of the equation.
-21 + -5b + -2b = 7 + 2b + -2b

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

Combine like terms: 2b + -2b = 0
-21 + -7b = 7 + 0
-21 + -7b = 7

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

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

Combine like terms: 7 + 21 = 28
-7b = 28

Divide each side by '-7'.
b = -4

Simplifying
b = -4

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