Question

Given that 6x – 4y= 29

Find x when y = 4
Give your answer as an improper fraction in its simplest form.
x=

Answer 1

substitute the y equation to the other equation.

6x - 4(4) = 29

6x - 16 = 29

6x = 29 + 16

6x = 45

x = 15/2