thezekromninja thezekromninja

15-04-2021
Mathematics

contestada

Please help Mhanifa quickly!
What is the result of subtracting the second equation from the first?
-4x-2y=-2
x-2y=9

Respuesta :

mhanifa mhanifa

15-04-2021

Answer:

Given:

-4x - 2y = -2
x - 2y = 9

Subtracting:

-4x - 2y - (x - 2y) = -2 - 9
-4x - 2y - x + 2y = - 11
-5x = -11
5x = 11
x = 11/5
x = 2.2

You can now find y:

2.2 - 2y = 9
2y = 2.2 - 9
2y = - 6.8
y = -6.8/2
y = -3.4

Solution (2.2, -3.4)

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