Question

if 3 x-y =27, 3 x+y =243 what is the value of x​

Answer 1

Answer:

brother you need to keep bracket otherwise we will not understand your question

Answer 2

Answer:

Answer

Given, 3

x−y

=27 and 3

x+y

=243

3

x−y

=3

3

3

x+y

=3

5

Takin log to the base 3 on both sides for both the equations

x−y=3 and x+y=5

Adding them,

x−y+x+y=8

2x=8

x=4

Thus, 4−y=3

y=1