DaQueen05 DaQueen05

16-12-2019
Mathematics

contestada

x+3y=7
4x-7y=-10
plz help

Respuesta :

16-12-2019

Answer:

x=1 & y=2

Step-by-step explanation:

x + 3y = 7 ------(1)

4x - 7y = -10 ---------(2)

(1)×4 4x + 12y = 28 --------(3)

(3)-(2) 19y = 38

y = 2

sub y=2 into(2)

(2)=> 4x - 14 = -10

4x = 4

x = 1

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