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Jet001 [13]
3 years ago
15

7x+2y=24 and 8x+2y=30

Mathematics
1 answer:
raketka [301]3 years ago
8 0
I guess you want to find the values of x & y. If so:

7x+2y=24 
8x+2y=30
1) multiply the 1st equation by (-1)==> -7x-2y=-24
2) Now add  -7x-2y=-24 to 8x+2y=30 ==> x + 0y = 6 ==> x = 6
3) replace x by 6 in any of te two equation & you will find y= - 9
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