When solving the system of equations, x + 2y = 15 which expression could be substituted 5x + y = 21for x in the second equation?

Cameron made 1 loaf of bread. his family ate 4/6 of the loaf of bread. how much of the loaf of bread remains? /

Aline has a slope of . which ordered pairs could be points on a parallel line? check all that apply. (-8, 8) and (2, 2) (-5, -1) and (0, 2) (-3, 6) and (6, -9) (-2, 1) and (3,-2) (0, 2) and (5,5)

Solve for b. ab + c= d b= a + old ob=allc-ch b= (d-c/a