Question

What is the solution to this system of equations?

Answer 1

Answer:

Step-by-step explanation:

(i) x+2y=4

(ii) x=4-2y

(iii) 2x-2y=5  

substituting (ii) in (iii)

2x-2y=5

2(4-2y)-2y=5

8-4y-2y=5

-6y=5-8

-6y=-3

(iv) y=$\frac{1}{2}$              

substituting (iv) in (ii)

x=4-2y

x=4-2×$\frac{1}{2}$

x=4-1

x=3

∴ B.(3,$\frac{1}{2}$)

HOPE IT HELPS YOU!!!!