answersLogoWhite

0

Subtract 9 from each side. ( subtraction; both sides )

X + 9 = 20

X + 9 - 9 = 20 - 9

X = 11

-----------------check in original equation

11 + 9 = 20

20 = 20

checks

User Avatar

Wiki User

13y ago

Still curious? Ask our experts.

Chat with our AI personalities

FranFran
I've made my fair share of mistakes, and if I can help you avoid a few, I'd sure like to try.
Chat with Fran
MaxineMaxine
I respect you enough to keep it real.
Chat with Maxine
RafaRafa
There's no fun in playing it safe. Why not try something a little unhinged?
Chat with Rafa

Add your answer:

Earn +20 pts
Q: Which operation should be performed x plus 9 equals 20?
Write your answer...
Submit
Still have questions?
magnify glass
imp