solve 3x – y = 3 and 9x–3y
= 9 and hence find the value of m for which y = mn + 2.
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Answer:
3x-y=3
9x-3y=9
multiply (1) eqn by 3
9x-3y=9
9x-3y=9
x=0
3(0)-y=3
y=3
y=mn+2
3=m+2
m=1
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