Respuesta :

esauazraa2

Step-by-step explanation:

label equations

x+y=3............1

3y+x=5.......2

make x the subject

x=3-y..........3

subs 3 into 2

3y+3-y=5

2y=2

y=1......4

subs 4 into 1

x+1=3

x=2

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