Can someone help me with this please.

2/3 + (-2 1/3) = -1 2/3

Step-by-step explanation:

the arrow is pointing to the left to where the negative integers are so there would have to be something that would be taken away.At the start of the line it is on 2/3 and at the end of the line which is the arrow ends at -1 2/3,so process of limination.Even if you don't know what is being taken away you would examine the number line.

Hope this helps :)

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

you for asking!