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Brendan Brewer
Mathematics
12 November, 06:32
Find x and y in
2x+2y=12
4x_4y=13
+3
Answers (
2
)
Jane
12 November, 06:39
0
x = 4.625, y = 1.375
Step-by-step explanation:
I am assuming that the second equation is 4x - 4y = 13.
2x+2y=12
4x-4y=13
Multiply first equation by - 2:-
-4x - 4y = - 24 Add this to the second equation to eliminate x:-
-8y = - 11
y = 11/8 = 1.375
Plugging this into the first equation:-
2x + 2 (1.375) = 12
2x = 9.25
x = 4.625
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Annie
12 November, 06:40
0
For the first one the answer is y=-1x+6 which means x=-1 and y=6
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