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Arte-miy333 [17]
4 years ago
13

Solve this system of equations using any method. 3x – y = 4 x + 2y = 13

Mathematics
1 answer:
Tomtit [17]4 years ago
7 0
3x-y=4
x+2y=13
elimination
multiply first equation by 2 and add to second
6x-2y=8

6x-2y=8
<u>x+2y=13 +</u>
7x+0y=21

7x=21
divide 7
x=3
sub
x+2y=13
3+2y=13
minu 3
2y=10
divide 2
y=5

x=3
y=5
(3,5)
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