205k views
3 votes
2x + 3y = -5
5x - y = -12

WHAT IS THE RESULT OF ADDING THESE TWO EQUATIONS?

User Markus
by
3.4k points

2 Answers

3 votes

Answer:

x= −2 /7 y+ −17 /7

Explanation:

well 3y and -y together make 2y. 2x and 5x make 7x. -5 and -12 make -17. then you get 7x+2y=-17. Let's solve for x.

7x+2y=−17

Step 1: Add -2y to both sides.

7x+2y+−2y=−17+−2y

7x=−2y−17

Step 2: Divide both sides by 7.

7x

7 = −2y−17 /7

x= −2 /7 y+ −17 /7

x= −2 /7 y+ −17 /7

User Pedro Lima
by
3.4k points
4 votes

You will have new classes to come at advanced stages of your studies that depend on these things. My advice to you is to love mathematics as much as possible.

User Sagar Rabadiya
by
3.1k points