Answer:
constant value do not have value it means it is constant .
Answer:
Step-by-step explanation:
the like terms are 9, 1 and 17e,-5e
9+1+17e-5e=10+12e
Its the same slope and everything just move the y intercept to 4
Answer:
426 chickens
Step-by-step explanation:
let the pigs = x
the ducks = 2×x = 2x
the chickens = 3×(2x) = 6x
x +2x +6x = 639
9x=639
x = 639/9 = 71
the chickens = 6x = 6×71 = 426