SOLUTION: Solve: 5c+3d+14 and 5c-d=22
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Question 698430: Solve: 5c+3d+14 and 5c-d=22
Answer by checkley79(3341) (Show Source): You can put this solution on YOUR website!
5c+3d=14 MULTIPLY BY -1 & ADD.
5c-d=22
-5c-3d=-14
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-4d=8
d=8/-4
d=-2 ans.
5c+3*-2=14
5c-6=14
5c=14+6
5c=20
c=20/5
c=4 ans.
proof:
5*4-(-2)=22
20+2=22
22=22
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