Question

solve the equation 4x+7y=28 for y in terms of x

Answer 1

4x + 7y = 28
transposing 7y to RHS (right hand side)
4x = 28 - 7y
4x + 28 = -7y
4(x + 7) = -7y
4(x + 7)/-7 = y
-4(x+7)/7 = y
(-4x + 28)/7 = y
(28-4x)/7

Answer 2

did u understand tell me if yes than give me a medal

Answer 3

I didn't understand the transition:
4x=28-7y to 4x+28=-7y

shouldn't it of been 4x-28=-7y ????

Answer 4

radar, you're right

Answer 5

I think so.
4(x-7)=-7y
4(x-7)/-7=y
(4x-28)/-7=-(4x/7)+4
y=4-(4x/7)