Seudónimo
Seudónimo
29-01-2017
Mathematics
contestada
Please help. The question is in the picture.
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mreijepatmat
mreijepatmat
25-08-2017
x= 7y +7 (a)
x = 9y - 3 (b)
Since (a) & (b) both equal to x, that means 7y + 7 = 9y - 2
7y + 7 = 9y - 3 →
7 + 3 = 9y - 7y
10 = 2y and y = 5. Replace y=5 either in (a) or in (b) and you will find x=42
Ten the solution is (42, 5)
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