Math

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

Asked by AnneS2 on 12 Jul 04:50

Last updated by anonymous on 13 Jul 11:40

1 Answers

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Answered by CherieS on 13 Jul 11:40

6u+v=18

6u+v-6u=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