140k views
4 votes
3x + 1/5y - 2 = 0
A. y=15x + 10
B.y=15x - 10
C.y=-15x +10
D.y=-15x-10​

User Bicbmx
by
5.6k points

2 Answers

5 votes

C.y=-15x +10

Move everything to the other side:

1/5y = 2-3x

Switch -3x and 2

1/5y= -3x+2

multiply by 5

y= -15x + 10

User RavenMan
by
5.1k points
5 votes

Answer:

C

Explanation:

You need to isolate the y variable. The first thing you need to do is move the 2 and 3x to the other side of the equation.

3x + 1/5y - 2 = 0

1/5y = -3x +2

Then you need to get rid of the 1/5 so you multiply both sides equation by the reciprocal of 1/5 which is 5/1 or 5.

y = ( -3x +2) 5

then you distribute the 5 to get

y = -15x+10

User Matthieu
by
5.4k points