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Yuliya22 [10]
3 years ago
9

What is x and y in 2x+4y=1 and 3x-5y=7

Mathematics
1 answer:
SpyIntel [72]3 years ago
5 0
I'm assuming you're doing simultaneous equations. First, we have to get a similar term in both equations, so:
6x + 12y = 3
6x - 10y = 14
Then you can subtract:
6x + 12y = 3
- 6x - 10y = 14
22y = -11
÷ 22
y = -0.5
Now we can substitute this into one of the equations:
2x + 4(× -0.5) = 1
2x - 2 = 1
+ 2
2x = 3
÷ 2
x = 1.5
So you get the values as x = 1.5 and y = -0.5. Hope this helps!
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