The pair of linear equations 3x + 4y = 12 and y =4 has
a. no common solution b. infinetly many solutions c. unique solution d. none of these
Given, pair of equation are:
3x + 4y = 12 and y = 4
They can be rewritten as:
3x + 4y – 12 = 0 ... (1)
and y = 4
Put y = 4 in (1), we get
3x + 4 (4) – 12 = 0
⇒ 3x – 4 = 0
So, the given system of equation will have unique solution for and y = 4.