Question

How can i solve this?

Answer 1

Step-by-step explanation:

27 = 3³

3³ = 3x3² = 3x9

1/27 = 27 ^-1

so we can write it as 3^-3

so we get

3^x x 9^2x-y = 3^-1 x 9^-1

so we get

x=-1 and 2x-y = -1

putting x=-1 in the second equation we get

2(-1) - y = -1

y = -1

therefore x=y=-1

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