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

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asked May 16, 2018 102k views

1 Answer

Peppermcknight · Answer 1 · 2018-05-22T01:21:57+0000

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

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

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