Math

Solve 2x + y = 19 and 2x - y = 13

Asked by AnneS2 on 02 Jul 04:58

Last updated by anonymous on 03 Jul 15:05

1 Answers

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Answered by CherieS on 03 Jul 15:05

2x + y = 19

2x + y -2x= 19-2x

y=19-2x

2x - y = 13

2x - (19-2x) = 13

2x - 19+2x = 13

4x-19=13

4x-19+19=13+19

4x=22

4x/4=22/4

x=5.5

y=19-2x

y=19-2(5.5)

y=19-11

y=8