Question

Solve using Substitution!
y = x + 8
y = 4x – 1​

Answer 1

y=11, x=3

Explanation:

Substitute y=4x-1:

4x-1=x+8

Isolate x for 4x-1=x+8:

4x-1=x+8

Add 1 to both sides:

4x-1+1=x+8+1

Simplify:

4x=x+9

Subtract x from both sides:

4x-x=x+9-x

Simplify 3x=9

Divide both sides by 3:

3x/3=9/3

Simplify:

x=3

For y=4x-1

Substitute x=3

y=4*3-1

Simplify

y=11

The solution to the system of equations are:

y=11,x=3

Answer 2

Answer: (3,8)

*** ask if need explantion