Solving linear equations using multiplication and division

Lessons

1. Solve the following equations.
   1. $- \frac{9}{7} = 3x$
   2. $\frac{x}{3} = \frac{5}{7}$
   3. $3\frac{1}{4} = 1\frac{1}{2}x$
   4. $- \frac{6}{5}x = - \frac{9}{8}$
2. Solve.
   1. $- 0.25 = \frac{x}{{ - 1.2}}$
   2. $6.3 = - 4.7x$
   3. $\frac{{2.2}}{x} = - 6.6$
   4. $4.5x = 8.1$
3. A laptop is on sale at 35% off. The sale price is $342.99 less than the original price. What is the sale price of the laptop?