Question

Y=x+5 4x+y=20 Solve by substitution

Answer 1

The answer would be x=3

Answer 2

Answer:

The solution of the given system is (3,8)

Step-by-step explanation:

step 1:-

Given equations are y= x+5......(1)

                                4 x+y=20.......(2)

Step 2:-

Adding both equation (1) and (2) equations and cancelled 'y' terms , we get

$5 x-15=0$

$x=3$

Step 3:-

Substitute x= 3 value in equation (1)

$y=3+5$

$y=8$

Final answer:-

The solution of the given system is (3,8)