Question

If UV=20, VW=7x, and UW=12x-10, what is VW?

Answer 1

set this up as follows...
12x - 10 = 7x + 20
solve for x
X is 6
sub VW=7X with 7•6
VW=42

check by subbing also for UW
72 - 10 is 62
uV plus VW equals 62. it checks out.