x -y  = -3 what is this in standard form

There are a few different standard forms for a line, let's assume we're after

Let's write

That's already in standard form and we could stop. Or we could multiply by 10.

We can bring the constant to the same side; some people prefer that as standard form:

There's also slope intercept form,

Plenty more forms where these comes from.

(x+3)(x+7)

step-by-step explanation:

hello :

by applying the distributive property :

6 × 4.3 = 6 × ( 4 + 0.3 )

            =   (6 ×   4) + (6 ×   0.3)

            = 24 + 1.8

6 × 4.3 = 25.8