Question 250887
two numbers make 128 one number is three more than two times the other number what are the two numbers

Let x be the larger and y the smaller of the two numbers. 

Then we have:

x + y = 128 and
x = 2y + 3

Based on the second equation we can substitute 2y+3 for x in the first equation as follows:

(2y+3)+ y = 128
3y = 125
y = 125/3

Substitute 125/3 for y in the second equation and calculate x.