Question

Complete each ordered pair so that it is a solution of the given linear equation.x - 2y = 3; ( ,4), (1, )

Answer 1

In each of these ordered pairs we have the value of x or the value of y.

For the first one ( , 4) we can replace the value of y = 4 into the equation and solve for x:

$x-2\cdot4=3$$x-8=3$$x=3+8=11$

So the first ordered pair is (11,4)

We do something similar for the second ordered pair. We replace the value x = 1 and solve for y:

$1-2y=3$$1-3=2y$$y=\frac{1-3}{2}=\frac{-2}{2}=-1$

So the second ordered pair is (1,-1)