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il63 [147K]
3 years ago
12

3x=-5y 6x-7y=17 Solve the equation

Mathematics
1 answer:
love history [14]3 years ago
7 0
3x = -5y -------------- (1)
6x - 7y = 17 --------- (2)

From (1):
3x = -5y
x = -5/3 y ---------- sub into (2)

6 (-5/3 y) - 7y = 17
-10y - 7y = 17
-17y = 17
y = -1 ------------ Sub into (1)
3x = -5 (-1)
3x = 5
x = 5/3

Ans: x = 5/3, y = -1

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Step-by-step explanation:

2 1/2 + x = 5 1/3                Change the mixed numbers to improper fractions

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