2x-y=3;3x+y=7 solve by substitution
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Step-by-step explanation:
from the question
2x-y=3..........(i)
3x+y=7..........(ii)
now,add equation (i) and (ii) we get
2x+3x=3+7
5x=10
x=10/5=2 so, x=2
put x=2 in equation (i)
2×2-y=3
4-y=3
y=4-3=1 so,y=1
so we get x=2 and y=1
thanks
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