Can someone tell me the answer and explanation plz I’ll give brainlist and points

 X = 60

Step-by-step explanation:

60+220=280

x = 60

Step-by-step explanation:

So, in order to isolate the x variable, get rid of the number on the same side of it, which is 220. Bring 220 over to the otherside of the equation and switch the sign. Since the 280 is already there, you subtract 280 from 220 to get 60.

x = 280-220

x = 60

1. 22

2. 1

3. 7

4. 18

step-by-step explanation

e2020 got it right

relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.

it alot will look like this 4.4