There are two fractions containing x and the denominators are different. First, let us find a common denominator to simplify the expression. The least common multiplier of 4 and 7 is 28. Then,
7(x – 2) / 28 – 4(3x + 5) / 28 = – 3.28 / 28 …
Since both sides are written on the denominator 28 now, we can eliminate them: