Question

How many solutions does the following equation have?

20z-5-12z=10z+8

Choose 1 answer:

(Choice A)

No solutions

(Choice B)

Exactly one solution

(Choice C)

Infinitely many solutions

Answer 1

B. Exactly one solution

Explanation:

The given equation is:

`20z - 5 - 12z = 10z + 8`

We group like terms to get:

`20z - 12z - 10z =8+ 5`

Combine like terms to get:

`- 2z = 13`

Divide both sides by -2

`z = - (13)/(2)`

The correct answer is B.