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Marquez
Mathematics
31 December, 02:56
Y=5x+20
Y=-7x-16
Solve each system by substitution
+2
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2
)
Jaelynn Dunlap
31 December, 03:09
0
x=3
y=35
Step-by-step explanation:
5x+20=-7x-16
-16+20=4
5x=-7x+4
5x+7x = 12x
12x=4
12/4=3
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Derick Short
31 December, 03:24
0
Answer: x = - 3; Y = 5
Step-by-step explanation:
Y=5x+20
Y=-7x-16
5x+20 = - 7x-16
5x + 7x = - 16 - 20
12x = - 36
x = - 36 / 12
x = - 3
Y=5x+20
Y = 5. (-3) + 20
Y = - 15+20
Y = 5
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