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Ralph Mccarthy
Mathematics
28 July, 12:27
7x+2y=24 and 8x+2y=30
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Raegan Burke
28 July, 12:54
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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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