Question

Find the value of x and y if: 3^x-1=9&4y+2=64​

Answer 1

Answer:

3^x-1=9

3^x-1=3^2

x-1=2 ----------if numbers are equal then their powers are also equal.

x=2+1

x=3

4y+2=64

4y=64-2

4y=62

y=62/4

y=15.5

OR

4^y+2=64

4^y+2=4^2----from the reason above

y+2=2

y=2-2

y=0

Step-by-step explanation:

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