Question 607587
3x=y+5 same as y=3x-5
x+2y=4 
x+2(3x-5)=4
x+6x-10=4
7x=14
x=2
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2+2y=4
2y=2
y=2/2
y=1
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3*2=5+1
I get the same as you do.
Bob