Practice problem
Which of the following is not in standard form?
3x+y=73x+y=73x+y=7
3x+y=−73x+y=-73x+y=−7
−3x−y=7-3x-y=7−3x−y=7
3x−y=73x-y=73x−y=7
Type a concept, like “slope” or “photosynthesis”.
