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kogti [31]
2 years ago
14

6y+5x=8 x3y=-7 use substituion

Mathematics
1 answer:
UNO [17]2 years ago
3 0
Substitution: 

6y + 5x = 8
x + 3y = -7

x = -3y + 7 

6y + 5(-3y + 7) = 8 
6y - 15y + 35 = 8 
-9y + 35 = 8 
-9y = -27 
-y = -3
y = 3

x = -7 + 9
x = 2

y = 3
x = 2
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