How many of each color will there be

Question

430 shirts 

twice as many red as white 

50 more blue as white

how many of each color shirts will there be?

Answer 1

w = number of white shirts

2w = number of red shirts

w + 50 = number of blue shirts

 

w + 2w + w + 50 = 430

4w + 50 = 430

4w = 380

w = 95

 

The are 95 white shirts, 190 red shirts, and 145 blue shirts.