110k views
2 votes
What is 20x+5y=15 for y?

2 Answers

5 votes

Answer:

y=3-4x

Explanation:

20x+5y=15, Subtract 20x from both sides.

5y=15-20x, Divide 5 from both sides.

y=3-4x

User LuxuryWaffles
by
8.5k points
1 vote
20x+5y=15

Add -20x to both sides.

20x+5y+20x=15+20x

5y=20x+15

Divide both sides by 5.

5y/5 = 20x+15/5

y=4x+3
User Cevdet
by
7.9k points