Question

Help, Medal.
4. Which of the following is equivalent to the equation 5x + 7y = 21?
A. 𝑦=−7𝑦+215
B. 𝑦=−57𝑥+3
C. 𝑦=−75𝑥+215
D. 𝑦=57𝑥−3
Please explain too.

Answer 1

none as written
y = -(5/7) x + 3

Answer 2

I don't get it

Answer 3

7 y = - 5 x + 21 then divide both sides by 7

y = -(5/7) x + 3

Answer 4

Get it now ?

Answer 5

You could write that as
y = -5x/7 + 3

Answer 6

ok...I get it. Thanks. here's the medal

Answer 7

You are welcome :)