When using the substitution method to solve the following system of equations, what is the result of the first step? Help plsss ! A, b,c or d

i believe that the slope of the line is -5

step-by-step explanation:

step-by-step explanation:

let pq = qr = rs = x, and xz = y and zu = z.

if the horizontal lines are parallel, then corresponding segments are in proportion:

substitute:

therefore 3 = y = z.

xu = y + z → xu = 3 + 3 = 6

middle maybe?

step-by-step explanation: