Question

What should be added to 4x + 5 to get 8-3x?​

Answer 1

Answer:

Step-by-step explanation:

LET ADDED NUMBER BE Y

THEN,

            4X+3+Y=8-3X

            4X+3X+Y=8-3

            7X+Y=5

Y=5/7X

Answer 2

Answer:

-7x +3

Step-by-step explanation:

let the no. to be added be y

(4x + 5) + y = 8 - 3x

y = (8 - 3x) - (4x + 5)

y = 3 - 7x