Question

how many solutions does the following equation have?
$12z - 6 + 15z = 27z - 5$
choose 1 answer:
a no solutions
b exactly one solution
c infinitely many solutions

Explanation:

Step1: Combine like terms on left

$12z + 15z - 6 = 27z - 5$
$27z - 6 = 27z - 5$

Step2: Subtract $27z$ from both sides

$27z - 6 - 27z = 27z - 5 - 27z$
$-6 = -5$

Answer:

A. No solutions