Solve the simultaneous equations x + y = 12 − x + 3 y = 16
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Answered by
2
Step-by-step explanation:
4y=28
y=7
y=5
OK friend this is urs answer
Answered by
0
Answer:
12-x+3y=16
-x+3y=4
x+y=12
3+y=16
y=13
x=-1
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