-2x +(12-9) = 2+9+2x 12x + 12 + -9 = 2 + 9 + 2x
-2x + 3 = 2x + 11
-2x + 3 - 2x = 2x + 11 -2x
-4x + 3 - 3 = 11 - 3
-4x = 8

Can someone please help me find out what equation I need to use to check if my answer is correct

Which function is represented by the graph

The triangles are similar. what is the value of x? enter your answer in the box.

This stem-and-leaf plot represents the heights of the students on ralph’s basketball team. one student’s height is missing from the plot. if the mean height of all the students on the team is 61 inches, what is the missing height? a. 55 in. b. 59 in. c. 61 in. d. 65 in.