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Sliva [168]
3 years ago
8

15. • Solve the simultaneous equations

Mathematics
1 answer:
tamaranim1 [39]3 years ago
5 0
Answer:
B. 1 and -2
Explanation:
First, add up the equations:
x-x+3y+y=4
4y=4
y=1
Now, plug y into any of the original equations above and solve for x:
-x+1=3
-x=2
x=-2
Therefore, the answer is B. 1 and -2
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