By segment addition rule AB + BC = AC
3x + 2x - 7 = 2x + 35
3x = 42
x = 1 4
CHECK
3(14) = 42
2(14)-7= 21
-------------------
2(14)+ 35= 63
Answer:
Yes, they do
Step-by-step explanation:
Yes, y = 3x represents direct variation. The fact that the line (graph) of y = 3x goes through the origin (0,0) reinforces this statement.