what is V= U-5 V= 3U+7?

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2007-11-19 08:17:12 · 3 answers · asked by Jocelyn 1 in Education & Reference ➔ Homework Help

V = U - 5
V = 3U + 7
V = V
SO
U - 5 = 3U + 7
-2U = 12
U = -6
V = (-6) - 5
V = -11

2007-11-19 08:20:47 · answer #1 · answered by Anonymous · 0⤊ 0⤋

U - 5 = V = 3U + 7

U - 5 = 3U + 7

(U - 5) - 7 = (3U + 7) - 7

U - 12 = 3U

(U - 12) - U = 3U - U

-12 = 2U

U = -6

V = -6 - 5

V = -11
.

2007-11-19 08:28:23 · answer #2 · answered by ? 7 · 0⤊ 0⤋

v=u-5
u=v+5

v=3(v+5)+7
v=3v+15+7
-2v=22
v=-11

u=-11+5
u=-6

2007-11-19 08:27:51 · answer #3 · answered by φ..Candy Man..φ 3 · 0⤊ 0⤋