michellewilliam michellewilliam

19-09-2014
Mathematics

contestada

solve the systems of equations 4a+7b=5, 8a-4c=-24, 6b-4c=26, solution is _,_,_____.

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souravchakrabor souravchakrabor

21-09-2014

4a+7b=5

so, 11ab=5

11ab/11=5/11

that's the answer.

8a-4c=-24

so 4ac=-24

4ac/4=-24/4

ac=-6

6b-4c=26

so 2bc=26

=2bc/2=26/2

bc=13

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