Question #5ff33

Nov 9, 2016

$x - 2 y = 4$

Explanation:

Integers are whole numbers, so we want to get rid of the fraction in the equation.

$y = \frac{1}{2} x - 2 \text{ "larr" } \times 2$ through whole equation

$2 y = \cancel{2} \times \frac{1}{\cancel{2}} x - 2 \times 2$

$2 y = x - 4 \text{ } \leftarrow$ re-arrange

$4 = x - 2 y$

$x - 2 y = 4 \text{ } \leftarrow$ this is standard form.