Answer:
5x-4y=19
x+2y=8
by substitution:
x= 8-2y
we replace x in the other equation
5(8-2y)-4y=19
40-10y-4y=19
-14y=19-40
14y=21
y=21/14 =3/2
we calculate x:
x+6/2 = 8
x+3=8
x=8-3=5
Explanation:
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