3 years ago

Solve P=a+2b+3c for b

2 answers:

7 0

What you do here is, isolate everything to solve for the variable b. Steps as following:

P-3c=a+2b
P-3c-a=2b
(P-3c-a)/2=b

Final answer: (P-3c-a)/2 = b

Gwar [14]3 years ago

3 0

If you're solving for b, that means you want to isolate b to one side.

P = a + 2b + 3c

Subtract 3c from both sides:

P - 3c = a + 2b

Subtract a from both sides:

P - 3c - a = 2b

Divide both sides by 2:

b = (P - 3c - a)/2

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