83,296 views
18 votes
18 votes
Solve system of equations 2x+3y=7, -2x+4=14

User Chaim Paneth
by
3.0k points

2 Answers

21 votes
21 votes
First equation:
2x + 3y = 7

subtract 3y from both sides

2x = 7 - 3y

divide both sides by 2

x = 7 - 3y over 2


Second equation:
-2x + 4 = 14

-2x = 14 - 4

-2x = 10

x = -10/2

x = -5
User Ibmkhd
by
3.1k points
23 votes
23 votes

Answer:

x = - 5 and y = 17/3

Explanation:

- 2x + 4 = 14

- 2x = 14 - 4

- 2x = 10

x = 10/-2

x = - 5

2x + 3y = 7

2*( -5 ) + 3y = 7

- 10 + 3y = 7

3y = 7 + 10

3y = 17

y = 17/3

User Yousername
by
3.0k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.