I assume they are lines? If not, then let's just say that they are lengths of lines. If ab = 21 centimeters and bc = 28 centimeters, then it is most likely that the line ac would equal to 49 centimeters. This was obtained through adding the length of two lines since they appear connected by point b.
Answer:
a = -3
Step-by-step explanation:
a - 2 + 3 = -2 ( cancel equal terms)
a + 3 = 0 (Move the constant to the right)
a = -3
89=x+1/3(7)
89=x+7/3
267/3=x+7/3
260/3=x
86 2/3=x. Hope it help!
