Question

If 3 raised to x-y =27 and 3 raised to x+y =243 find x

Answer 1

Answer:4

Step-by-step explanation:

3^x-y=27=3^3

X-Y=3

3^x+y=243=3^5

x+y=5

x-y+x+y=3+5

2x=8

X=4