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Scarlett
Mathematics
19 October, 23:03
2y-3x=-27
5y+3x=6
Solve x and y
+3
Answers (
1
)
Maxwell Bradley
19 October, 23:25
0
Answer: y=-3 x=7
Step-by-step explanation:
2y-3x=-27 ... (1)
5y+3x=6 ... (11)
Add (1) and (11)
2y+5y-3x+3x=-27+6
7y=-21
Divide both sides by 7
7y/7=-21/7
y=-3
Substitute y=-3 in 5y+3x=6
5 (-3) + 3x=6
-15+3x=6
3x=6+15
3x=21
Divide both sides by 3
3x/3=21/3
x=7
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