1. The problem statement, all variables and given/known data How do you eliminate this? V3(cos A) + V4(cos 30) = 5 Equation 1 V3(sin A) = -(V4)(sin 30) Equation 2 V3^2 + V4^2 = 25 Equation 3 2. Relevant equations 3. The attempt at a solution I let x= V3 ; y=V4 and I got x(cos A) + y ((sqrt)3) = 10 -2x(sin A) = y x^2 + y^2 = 25 but I'm totally stuck... any help?