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Mathematics
Ayla Roach
11 October, 14:39
15x + 31y = - 3
X = - y + 3
+4
Answers (
1
)
Adyson Singleton
11 October, 18:01
0
Step-by-step explanation:
x+y=3
x=3-y
15 (3-y) + 31y = -3
45-y+31y=-3
-y+31y = -3-45
30y:30=-48:30
y=-1,6
x+y=3
x+-1,6=3
x-1,6=3
x=3+1,6
x=4,6
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