Welcome to Westonci.ca, the Q&A platform where your questions are met with detailed answers from experienced experts. Get immediate and reliable solutions to your questions from a knowledgeable community of professionals on our platform. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields.

How many solutions exist for the following system of equations: 4x + y = 7 and 3x - y = 0 a. no solution b. one solution c. infinitely many d. cannot be determined

Sagot :

naǫ
[tex]4x+y=7 \\ \underline{3x-y=0} \\ 4x+3x=7+0 \\ 7x=7 \ \ \ |\div 7 \\ x=1 \\ \\ 3x-y=0 \\ 3 \times 1-y=0 \\ 3-y=0 \ \ \ |+y \\ y=3 \\ \\ (x,y)=(1,3)[/tex]

The answer is B. one solution.