Question

Which equation has infinitely many solutions?

A. -6.8 + 3y + 2.4 = 4.3 - 3y
B. 1/3y + 2.5 - 3/2y = 1.2
C. 5.1 + 2y + 1.2 = -2 + 2y + 8.3
D. 2/5y = 2.3 + 3/2y

Answer 1

C

Explanation:

When an equation has infinitely many solutions, what we have on the right is also what we have on the left side of the equation

Let’s take a look at the third equation;

5.1 + 2y + 1.2 = -2 + 2y + 8.3

5.1 + 1.2 + 2y = 2y + 8.3-2

6.3 + 2y = 2y + 6.3

This equation has infinitely many solutions