Answer:
1a) x = 5, y = 2
b) x = 2, y = -1
2a) x = 2, y = 1
b) x = -0.3, y = 2.4
3 don’t know sorry
4a) x = -7, y = 3
b) x = -3.2, y = -23.8
Step-by-step explanation:
2/18, 1/9
5/18 + (-1/6)
-1/6=-3/18
5/18+(-3/18)=
2/18
9:3;27:9;87:27
The list goes on but hope that answers your question
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