Maths-
General
Easy
Question
5x – y = 9
- 60x + 12y = - 108
How many solutions does the given system of equations have?
- Zero
- Exactly one
- Exactly two
- Infinitely many
The correct answer is: Infinitely many
HINT: Solve the system of equations and find the number of solutions.
Complete step by step Solution
Given system of equations are:
…(i)
(ii)
On multiplying (i) with 12,
We get, 
…(iii)
On multiplying (iii) with -1, we get the equation same as that of (ii)
On solving the same equations, we will have infinitely many solutions since they overlap each other.
Hence option D is the answer.
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