Question

2. Which system has an infinite number of solutions?

a. x+2=y
4= 2y-x

b. 2y + 6 = 4x
-3=y-2x

c. y+3=2x
4x=2y-3

d. y = 2x - 5
-2 = y - 2x

Answer 1

Answer: B

Step-by-step explanation:

Substitution method

solve the equation for Y by putting the variable on the left. -3 = y - 2x would become y = 2x - 3

Plug Y into the top equation. 2(2x - 3) + 6 =4x

4x - 6 + 6 = 4x

Combine like terms

4x - 0 = 4x

4x = 4x

Infinite Solutions