how do you solve this math problem?

Question

y = 20 - 3y, ho w do you solve it and please list the steps

Answer 1

y + 3y = 20
4y = 20
y = 5

Answer 2

y = 20 - 3y

There is the equation, First of all you only want the 'y' on ONE side of the equation, and since the '3y' has a negative sign before it, Therefore it is in negative form, So it is easiest to clear.

y = 20 - 3 y
+ 3y + 3 y

4y = 20

(It is 4y because the 'y' always has an invisible '1' before it) And you want to get rid of the 4 to figure out what 'y' equals. So since this involves multiplication, You need to divide the numbers by 4.

4y (Divide) 4
20 (Divide) 4

Therefore:
y = 5

Answer 3

y=20-3y

You are solving for y. To solve for y, you put numbers with a same letter or a same letter together. -3y has to cross the equal sign. -3y changes to +3y.
y+3y=20
4y=20
Divide both sides by 4 to solve for y. Y cannot have a number.
y=5
y=20-3y
3y+y=20
4y=20
y=5

Answer 4

1) y = 20 - 3y
2) 3y + y = 20 (put 3 on the left side and change the sign...opposite side opposite sign)
3) 4y = 20
4) y = 20 / 4
5) y = 5

Answer 5

First you add 3y to both sides giving you 4y = 20. Then you divide both sides by 4 and you get y = 5.

Answer 6

Hey there!

Here's the answer.

y=20-3y --> Write the problem.
4y=20 --> Add 3y on both sides of the equation.
y=5 Divide 4 on both sides of the equation.

So the answer is y=5.

Hope it helps!

Answer 7

y = 20 - 3y(..add 3y to both sides)

4y = 20 (divide by 4)

y = 5

Answer 8

1. Get all the variables on one side (so add 3y to both sides, giving you 3y + y = 20).
2. Add the 3y and y, giving you 4y = 20.
3. Divide both sides by 4, giving you y = 5.
4. Your solution is 5.

Good luck!

Answer 9

y=20-3y minus y from each side of the equation
20-4y=0 add 4y to each side
20=4y or 4y=20 divide each side by 4
y=5

Answer 10

y = 20 - 3y
transpose -3y
y + 3y = 20
4y = 20
y = 20/4
y = 5