Question

Find X
Is number 8 correct

Answer 1

no, x=24.75

Explanation:

you need your equation to equal something or else you cant find x, 4x+2x-18 are both on the same side of the equal sign. I got 180 because EGH make a straight line and a straight line equals 180.

so your starter equation should look like this:

(2x-18)+(4x)=180

combine like terms:

8x-18=180

add 18 to both sides:

8x=198

Devide 8 on both sides:

x=24.75

Check answer:

(2(24.75)-18)+(4(24.75))=180

Answer 2

No, your answer is wrong. X=33

Explanation:

Starting off we know that you cannot solve an equation without an equals sign. You have an expression which you just simplified. Know that angles cannot be negative. Plugging x into the (4x) will give you -12 that is not a possible degree measure. So you must add your 2x-18 and 4x to get 6x-18=180. I have st it to 180 because a straight line is always 180 degrees no matter what. Then I added 18 to both sides to lose the excess number and then simply divided by 6 to get x=33. Hope this helps!