6.0k views
2 votes
Solve each system by using substitution
X= Y - 2 4X + Y = 2

User Plaxdan
by
4.2k points

2 Answers

2 votes

Answer:

(0, 2 )

Explanation:

Given the 2 equations

x = y - 2 → (1)

4x + y = 2 → (2)

Substitute x = y - 2 into (2)

4(y - 2) + y = 2

4y - 8 + y = 2

5y - 8 = 2 ( add 8 to both sides )

5y = 10 ( divide both sides by 5 )

y = 2

Substitute y = 2 into (1) for corresponding value of x

x = 2 - 2 = 0

Solution is (0, 2 )

User David Gard
by
3.9k points
5 votes

Answer:

10

Explanation:

User Eudys
by
4.0k points