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Mccoy
Mathematics
23 September, 07:37
5x+2y = 5
3 х - у = 14
Solve
+4
Answers (
1
)
Anton Gaines
23 September, 07:43
0
x = 3
y = - 5
Step-by-step explanation:
5x+2y = 5 equation 1
3 х - у = 14 equation 2
using equation 2 we have:
3x - 14 = y equation 3
using equation 3 in equation 1 we have:
5x + 2 (3x - 14) = 5
5x + 6x - 28 = 5
11x = 5+28
11x = 33
x = 33/11
x = 3
using equation 3 we have:
3 (3) - 14 = y
y = 9-14
y = - 5
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