Solve by using variable separation method 1- (2x^2+3y^2-7)x. dx -(3x^2+2y^2-8).y. dy=0
2-(2y-3x).dx-x. dy=0

One-third of the people from country a claim that they are from country b, and the rest admit they are from country a. one-fourth of the people from country claim that they are from country a, and the rest admit they are from country b. in a combined census of the two countries, one-half of the total claimed to be from a. what is the ratio of the populations of country a to that of country b.

What value of x is in the solution set of 4x - 12 s 16 + 8x? -10 -9 -8 -7

How is working backward similar to solving an equation?