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MAXImum [283]
3 years ago
11

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

Mathematics
2 answers:
NARA [144]3 years ago
8 0

Answer:

y=11, x=3

Step-by-step 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

stepladder [879]3 years ago
5 0

Answer: (3,8)

*** ask if need explantion

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