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

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


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

Reorder the terms:
-21 + 3b + -7b = b + 3

Combine like terms: 3b + -7b = -4b
-21 + -4b = b + 3

Reorder the terms:
-21 + -4b = 3 + b

Solving
-21 + -4b = 3 + b

Solving for variable 'b'.

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

Add '-1b' to each side of the equation.
-21 + -4b + -1b = 3 + b + -1b

Combine like terms: -4b + -1b = -5b
-21 + -5b = 3 + b + -1b

Combine like terms: b + -1b = 0
-21 + -5b = 3 + 0
-21 + -5b = 3

Add '21' to each side of the equation.
-21 + 21 + -5b = 3 + 21

Combine like terms: -21 + 21 = 0
0 + -5b = 3 + 21
-5b = 3 + 21

Combine like terms: 3 + 21 = 24
-5b = 24

Divide each side by '-5'.
b = -4.8

Simplifying
b = -4.8

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