Question

9x-8y= 1
18x - 16y= 2

Answer 1

all real numbers.

Explanation:

9x - 8y = 1

18x - 16y = 2

if you look at the first equation, you can figure out what y equals.

9x - 8y = 1

add 8y to both sides

9x = 1 + 8y

subtract 1 from both sides

9x - 1 = 8y

divide both sides by 8

`(9x - 1)/(8)` = y

now, substitute y in the second equation.

18x - 16y = 2

18x - 16(
`(9x - 1)/(8)`) = 2

18x - 2(9x - 1) = 2

18x - 18x +2 = 2

2 = 2

the answer is all real numbers, because regardless of what x equals, 2 will always equal 2.

Answer 2

all real numbers hope it helps