solve the equation by using substitution method and elimination method 2x-y-3=0 , 4x+y-3=0
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7
Answer:
Elimination method
2x-y=3
4x+y=3
6x=6
x=1
4(1)+y =3
y=3-4
y=-1
Substitution method
4x+y=3
y=3-4x
Substituting y in 2x-y=3
2x-(3-4x)=3
2x-3x+4x=3
6x = 3+3
x=1
y=3-4(1)
= 3-4
y=-1
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hello
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