How do you solve for a: in #p=a+b+3c#?

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Answer 1 · 2016-07-17T05:27:40

#a=p-b-3c#

We start from the given equation
#p=a+b+3c#

We are solving for #a#. This means at the end of the math process, we should have #a=# to something.

#p=a+b+3c#
By subtraction property of equality, subtract #b# and #3c# from both sides of the equation

#p-b-3c=a+b+3c-b-3c#

#p-b-3c=a#

and

#a=p-b-3c#

God bless....I hope the explanation is useful.