3x-5y= -1 x-y= -1 using substitution method
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Answer:
x=(-2), y=(-1)
Step-by-step explanation:
x-y=(-1)--eq1 ; 3x-5y=(-1)--eq2
x-y=(-1)--›x=y-1
Substitute x=y-1 in eq2
3x-5y=(-1)
3(y-1)-5y=(-1)
3y-3-5y=(-1)
3y-5y=(-1)+3
(-2y)=2
y=(-2)/2
y=(-1)
Substitute y=(-1) in eq1
x-y=(-1)
x-(-1)=(-1)
x+1=(-1)
x=(-1)-1
x=(-2)
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