If 3(x - y)= 27 and 3(x + y) = 243, then x is equal to:
0
2
4
6
Explanation:
3(x - y)= 27=33 $\Leftrightarrow $x - y = 3 ....(i)
3(x + y) = 243=35 $\Leftrightarrow$ x + y = 5 ....(ii)
On solving (i) and (ii), we get x = 4.
3(x - y)= 27=33 $\Leftrightarrow $x - y = 3 ....(i)
3(x + y) = 243=35 $\Leftrightarrow$ x + y = 5 ....(ii)
On solving (i) and (ii), we get x = 4.