What does the e and the r with the line in the middle means?

R- All Real numbers

E- I think it means infinity or an equivalent to an = sign

The E means "Is part of"

For example, C is part of

I don't know about the R, so hope the E problem helped!

let's solve your equation step-by-step.

24−3x=−27

step 1: simplify both sides of the equation.

24−3x=−27

24+−3x=−27

−3x+24=−27

step 2: subtract 24 from both sides.

−3x+24−24=−27−24

−3x=−51

step 3: divide both sides by -3.

−3x

−3

=

−51

−3

x=17

answer:

x=17

step-by-step explanation:

mark brainliest and have a great day!

the probability that a bird is green (.30) is true

step-by-step explanation: