First we have to make the fractions even so there denominator have to be equal. So 15 times 2 gets 30 and 6 times 5 gets 30 too. Now multiply the numerator by the corresponding number of 25/30 and 16/30. Subtract to get 9/30 now simplify to get 3/10.
Step-by-step explanation: Re-order terms so constants are on the left 15 * x/9 - 42 =28 Combine multiplied terms into a single fraction 15x/9 - 42 = 28 Cancel terms that are in both the numerator and denominator 5x/3 - 42 = 28