Question

What is the difference of the value of the two y= 2X plus 1X plus 3Y equals 10

Answer 1

y = 2x + 1...so sub in 2x + 1 for y in the other equation

x + 3y = 10

x + 3(2x + 1) = 10

x + 6x + 3 = 10

x + 6x = 10 - 3

7x = 7

x = 1

y = 2x + 1

y = 2(1) + 1

y = 2 + 1

y = 3

the difference : there can be 1 possible answer for this..

y - x = 3 - 1 = 2