1 EASY Find the value of $$x$$ : $$x + 2 = 6$$

 2 EASY Given $$x = 1$$, find the value of $$8x + 3$$

 3 EASY Find the value of $$y$$ : $$2y - 5 = 13$$

 4 MEDIUM Find the value of $$z$$ : $$6z - 5 = 2z + 7$$

 5 MEDIUM Find the value of $$x$$ : $$4x + 2x + 8x = -7$$ 2-0.50.5-2None of the above

 6 MEDIUM Find the value of $$a$$ : $$7a - 5 = 3 - a$$

 7 HARD Find the value of $$g$$ : $$1997g + 2008g + 2552g = 2013g + 3456g - 1980g$$

 8 HARD Find the value of $$y$$ given $$b = 8$$, $$e = 10$$, $$n = -17$$ and $$by + ey + ny = ben$$

 9 HARD Given $$y = 8$$, $$v = 2y + 3$$, $$e = v - 2y + 1$$, $$s = evy - ey - vy - ev$$, find the value of $$yves - sevy$$