Math

6u+v=18 and 5u+2v = 22 Solve for each system

Asked by AnneS2 on 18 Jul 05:22

Last updated by anonymous on 20 Jul 10:39

1 Answers

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Answered by CherieS on 20 Jul 10:39

6u+v=18

6u-6u+v=18-6u

v=18-6u

5u+2v = 22

5u+2(18-6u) = 22

5u+2(18) (2)(-6u) = 22

5u+36-12u=22

36-7u=22

36-7u-36=22-36

-7u=-14

-7u/-7=-14/-7

u=2

v=18-6u

v=18-6(2)

v=18-12=6