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

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


Simplifying
2(b + 3) + -1(7 + b) = -4

Reorder the terms:
2(3 + b) + -1(7 + b) = -4
(3 * 2 + b * 2) + -1(7 + b) = -4
(6 + 2b) + -1(7 + b) = -4
6 + 2b + (7 * -1 + b * -1) = -4
6 + 2b + (-7 + -1b) = -4

Reorder the terms:
6 + -7 + 2b + -1b = -4

Combine like terms: 6 + -7 = -1
-1 + 2b + -1b = -4

Combine like terms: 2b + -1b = 1b
-1 + 1b = -4

Solving
-1 + 1b = -4

Solving for variable 'b'.

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

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

Combine like terms: -1 + 1 = 0
0 + 1b = -4 + 1
1b = -4 + 1

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

Divide each side by '1'.
b = -3

Simplifying
b = -3

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