Question

Which shows this equation in standard form?



7 – 3(x – y) = 5x + 2



A.3x – 8y = 5


B.8x + 3y = 5


C.8x – 3y = 5



D.8x – 3y = –5


@iGreen

Answer 1

The Standard Form equation of a line has the following formula: Ax + By = C where A ≠0 and B ≠0

Answer 2

Just simplify.

Distribute -3 into the parenthesis:

7 - 3(x - y) = 5x + 2

7 - 3x + 3y = 5x + 2

Subtract 7 to both sides:

-3x + 3y = 5x - 5

Add 5x to both sides.

-3x + 5x + 3y = -5

Can you add -3x + 5x? (It's just like adding -3 + 5, but you put an 'x' after it.)

Answer 3

@NunChuckBoy3101

Answer 4

No, -3 + 5 does not equal 8..

Answer 5

No, -3 + 5 is the same thing as 5 - 3, what's 5 - 3?

Answer 6

2x @iGreen

Answer 7

Yep, you got it.

Answer 8

Argh, I made a mistake..you have to subtract 5x to both sides.

So what's -3 - 5?

Answer 9

@iGreen 2x