Answer:
1.x+y=5
2x+3y=12
2.x+y=53
x-y=23
3. 4x+y=-3
13+4y=x
4. 2x+2y=48
3x=y
5.x+y=49
x-y=21
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Answer:
1.x+y=5
2x+3y=12
2.x+y=53
x-y=23
3. 4x+y=-3
13+4y=x
4. 2x+2y=48
3x=y
5.x+y=49
x-y=21