-3(2b+4)=(b+7)

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Solution for -3(2b+4)=(b+7) equation:


Simplifying
-3(2b + 4) = (b + 7)

Reorder the terms:
-3(4 + 2b) = (b + 7)
(4 * -3 + 2b * -3) = (b + 7)
(-12 + -6b) = (b + 7)

Reorder the terms:
-12 + -6b = (7 + b)

Remove parenthesis around (7 + b)
-12 + -6b = 7 + b

Solving
-12 + -6b = 7 + 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.
-12 + -6b + -1b = 7 + b + -1b

Combine like terms: -6b + -1b = -7b
-12 + -7b = 7 + b + -1b

Combine like terms: b + -1b = 0
-12 + -7b = 7 + 0
-12 + -7b = 7

Add '12' to each side of the equation.
-12 + 12 + -7b = 7 + 12

Combine like terms: -12 + 12 = 0
0 + -7b = 7 + 12
-7b = 7 + 12

Combine like terms: 7 + 12 = 19
-7b = 19

Divide each side by '-7'.
b = -2.714285714

Simplifying
b = -2.714285714

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