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Mathematics
Devan Galvan
10 February, 06:29
X=5y+41
X+3y=-15
Substitution method
+5
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2
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Jordyn Little
10 February, 07:27
0
X = 5y + 41
x + 3y = - 15
(5y + 41) + 3y = - 15
(5y + 3y) + 41 = - 15
8y + 41 = - 15
- 41 - 41
8y = - 56
8 8
y = - 7
x = 5 (-7) + 41
x = - 35 + 41
x = 6
(x, y) = (6, - 7)
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Willow Hanna
10 February, 09:53
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you substitute 5y+41 for x and get 5y+41+3y=-15 then you simplify by doing 8y+41=-51 subtract 41 from each side and divide by 8 to get y alone. That's how you get 11.5 for your answer.
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