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Mathematics
Makenna Jimenez
8 March, 16:54
11x+4y=-46
7x-4y=10
Find x and y
+1
Answers (
1
)
Julio Solomon
8 March, 20:27
0
Answer:x=-2 y=-6
Step-by-step explanation:
11x+4y=-46 ... (1)
7x-4y=10 ... (11)
Add (1) and (11)
11x+7x+4y-4y=-46+10
18x=-36
Divide both sides by 18
18x/18=-36/18
x=-2
substitute x=-2 in (11)
7x-4y=10
7 (-2) - 4y=10
-14-4y=10
Collect like terms
4y=-14-10
4y=-24
Divide both sides by 4
4y/4=-24/4
y=-6
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