SOLUTION: the problem is:
{{{ c/2-80b=120 }}} and {{{ a/5+2b/7=1}}}
(find c in terms of a)
when i did the second expression, i got 80b=280-56a
then i substituted this into the first
Algebra ->
Expressions-with-variables
-> SOLUTION: the problem is:
{{{ c/2-80b=120 }}} and {{{ a/5+2b/7=1}}}
(find c in terms of a)
when i did the second expression, i got 80b=280-56a
then i substituted this into the first
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Question 62850: the problem is:
and
(find c in terms of a)
when i did the second expression, i got 80b=280-56a
then i substituted this into the first and got
c=800-112a as my final answer
is this right??
thanks Answer by Earlsdon(6294) (Show Source):
You can put this solution on YOUR website! Well, it looks like you got it all right!.. Substituting this into the first "equation". Simplifying, you get: Multiplying by 2:
(