lchilds wrote:(2/3)X + (1/6)X =2
This is a linear equation. To
solve, a good first step would be to multiply through by "6" to clear the denominators, and then
combine the "like" terms on the left-hand side. Divide through by "5" to complete the solution.
lchilds wrote:-2X - 4<10
Solving linear inequalities is
very similar to solving linear equations such as the previous exercise. In this case, a good first step would be to add "4" to both sides. The next obvious step would be to divide through by "-2"; this is where you encounter the one difference between equations and inequalities: when you multiply or divide through by a negative, you need to remember to reverse the inequality sign.
So after dividing through by "-2", you'll need to remember to switch the "less than" sign to a "greater than" sign. Then simplify the right-hand side to complete the solution.
If you get stuck, please reply showing how far you have gotten. Thank you!