Practice problem
Which of the following are literal equations?
x2=y2+y+4x^2 = y^2 + y + 4x2=y2+y+4
x2=x+3x^2 = x + 3x2=x+3
x=x+1x = x + 1x=x+1
x=4x = 4x=4
Type a concept, like “slope” or “photosynthesis”.