The ratio of blue to red chips is 4 to 3. The number of blue chips are doubled and now there are 15 fewer red than blue chips. How many red chips are there?
Honestly we could work with the double but it doesnt affect the ratio of b:r This relationship is linear so keep that in mind. so if we make x be the number of iterations
8x = 6x - 15
x = -15 We know that we cant have negative iterations so this is just 15
