because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.
Answer from: Quest
cant
step-by-step explanation: there is no picture
Answer from: Quest
graph b
step-by-step explanation:
one solution- graph a (clear intercepting point.)
no solution- graph b (they're parallel, there will never be a point of interception.)
infinite solutions- graph c (all points intercept.)