2(b-4)+b=7

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


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

Reorder the terms:
2(-4 + b) + b = 7
(-4 * 2 + b * 2) + b = 7
(-8 + 2b) + b = 7

Combine like terms: 2b + b = 3b
-8 + 3b = 7

Solving
-8 + 3b = 7

Solving for variable 'b'.

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

Add '8' to each side of the equation.
-8 + 8 + 3b = 7 + 8

Combine like terms: -8 + 8 = 0
0 + 3b = 7 + 8
3b = 7 + 8

Combine like terms: 7 + 8 = 15
3b = 15

Divide each side by '3'.
b = 5

Simplifying
b = 5

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