(1)x-2y=5;2x-4y=6 (2)x+y=6;x=y+2 (3) x+2y=8;2x+4y=16 by substitution method solve please
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(2) x+y=6----(1). x=y+2----(2)
Putting the value of x in equation (1)
y+2+y= 6
2y+2=6
2y=6-2
y=4/2
y=2
Putting the value of y in equation (2)
x=2+2
x=4
I only know the 2 answer
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