39. If the letters A, B, C, D, E, F represent the numbers 4 to 9 in some order, and
A + C = D
A + D = 2B
C + E = 2F
then what number does F represent?

To solve the system of equations below, pedro isolated the variable y in the first equation and then substituted it into the second equation. what was the resulting equation? { 5y=10x {x^2+y^2=36

Asap its important using the information in the customer order, determine the length and width of the garden. enter the dimensions.length: feetwidth: feet

X+ y = 5 ; x - y =3 solve using linear combination