Math

Solve x + 3y = - 10 and - x + 3y = - 14

Asked by AnneS2 on 08 Jun 12:07

Last updated by anonymous on 10 Jun 11:47

1 Answers

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Answered by CherieS on 10 Jun 11:47

x + 3y = - 10

x + 3y -3y= - 10-3y

x= - 10-3y

- x + 3y = - 14

- (- 10-3y) + 3y = - 14

+10+3y + 3y = - 14

10+6y= - 14

10+6y-10= - 14-10

6y=-24

6y/6=-24/6

x=-4

-4= - 10-3y

-4+10= - 10-3y+10

6=-3y

6/-3=-3y/-3

2=y