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## Homework Statement

Three forces F1, F2 and F3 act on a particle.

F1 = (-3i + 2pj)N F2 = (pi + 3qj)N F3 = (qi - 7j)N

Given that the particle is in equilbirum, determine the value of p and the value of q.

## Homework Equations

(-3i + 2pj) + (pi + 3qj) + (qi - 7j) = 0

## The Attempt at a Solution

Well, its in equilbirum, so I figured all the forces added together would equal 0. Now, because there's more then one unknown, one thing to do is to use is Simultanious Equations, but I'm finding it difficult cause I'm unsure of how to make the simultanious equations, which is meant to be basic at my level =/.

Any hints/help is very appreciated =) However, it is a Sunday after all ;)