Solve the system of linear equations by graphing

y = - 5/2 * - 7

X + 2y = 4

Step-by-step explanation:

hello:

y = - 5/2 * - 7 ... (*)

X + 2y = 4 ... (**)

by (*) put the value of y in (**) : x+2 (-5/2 * - 7) = 4

x - 5x - 14 = 4

-4x-14 = 4

-4x = 18

x = - 18/4 = - 9/2

but : y = - 5/2 * - 7 so : y = - 5/2 (-9/2) - 7=45/4 - 7 ... continu