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3 votes
-2x+y=4
-5x+2y=1
I need the ordered pairs for these two

User Noamtm
by
8.5k points

1 Answer

3 votes

Answer:

(7,18)

Explanation:

I think that you are asking for a solution to both equations

-2x + y = 4 → x -2 → 4x -2y = -8

-5x + 2y = 1 → (+) -5x + 2y = 1

-x = -7

x = 7

Substitute 7 for x in either of the two equations and solve for y.

-2(7) + y = 4

-14 + y = 4 Add 14 to both sides

y = 18

The solution is (7,18).

Check:

-2x + y = 4

-2(7) + 18 = 4

-14 + 18 = 4

4=4 Checks.

-5x + 2y = 1

-5(7) + 2(18) = 1

-35 + 36 = 1

1 = 1 checks

Helping in the name of Jesus.

User Mschayna
by
7.7k points