Math, asked by mamtaranihaz, 10 months ago

If 8^x × 4^y = 32 and 81^x/27^y = 3; find the values of x and y.

Answers

Answered by AJAYMAHICH
13

Step-by-step explanation:

8^x . 4^y = 32

2^3x . 2^2y = 2^5

2^(3x+2y) = 2^5

3x+2y = 5 .......eq.(1)

81^x/27^y = 3

3^4x / 3^3y = 3^1

3^(4x-3y) = 3^1

4x-3y = 1 ........eq.(2)

eq.(1) and (2).

3x+2y = 5 .......eq.(1)

4x-3y = 1 ........eq.(2)

from eq. (2)

x = (3y+1)/4

3(3y+1)/4 + 2y = 5

9y+3+8y = 20

17y = 17

y = 1

x = {3(1)+1}/4 = 1

Answered by jatingigulia67
2

Answer:

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