Question

solve for x and y 3^x-y=27 ,3^x+y=243​

Answer 1

Answere

3x - y = 27 = 33 ⇔ x - y = 3 ....(i)

3x + y = 243 = 35 ⇔ x + y = 5 ....(ii)

On solving (i) and (ii), we get x = 4.

Hope this helps...

Answer 2

Step-by-step explanation:

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