You add everything inside the triangle that equals to 140. So 2x + x + 2 = 140. You add 2x + x together to get 3x. Now you have 3x + 2 = 140. Subtract 2 from both sides. You now have 3x = 138. Divide 3 from both sides. The answer is now x=46. Now you plug 46 into the equations. So 2(46) = 92