Problem: if 6 - 12 / x = 7 - 7 / x , then x =
Rationale: "we ' re given the equation 6 - 12 / x = 7 - 7 / x . we ' re asked for the value of x . the common - denominator of these 4 numbers is x , so we need to multiply both sides of the equation by x , giving us . . . 6 x - 12 x / x = 7 x - 7 x / x we can then eliminate that denominator , which gives us . . . . 6 x - 12 = 7 x - 7 - 5 = x a"
annotated_formula: divide(add(7, 12), subtract(6, 7))