Answer:
36,000
Step-by-step explanation:
if you multiply 12,000 and 3 you get 36,000.
6x - 12 + x = 9
6x + x - 12 = 9
Collect like terms
7x - 12 = 9
Add both sides 12
7x - 12 + 12 = 9 + 12
7x = 21
Divide both sides by 7
7x ÷ 7 = 21 ÷ 7
x = 3
