Linear equations

Question

Which points have the linear equation 3y + 3x= 9

Answer 1

Two points will be (3, 0) and (0, 3).

We can simplify the equation by dividing by 3:

(3x + 3y)/3 = 9/3,

x + y = 3.

y-intercept form:

y = 3 - x.

If you choose value for x, you will find value for y. For example, x = 0.3:

y = 3 - 0.3 = 2.7.

3 x 2.7 + 3 x 0.3 = 9 -->True.