Solve the equation: 3y - 11 = 9 - y?

Question

y =

(3 marks)

this is from my revision paper, please can you show me how to work it out.

Answer 1

five
y = 5

First shift the -y from the right hand side to the left hand side.

So it become +y here
So you have

3y - 11 +y = 9

Next shift the -11 to the right. That becomes +11
So, you have

3y + y = 11 + 9
Add

4y=20

y=20/4 = 5

OR
starting from 3y-11=9-y
add y to both sides
4y-11=9
add 11 to both sides
4y=20
then again you have y=20/4 = 5

Answer 2

3y - 11 = 9 - y
3y+y=9+11
4y=20
y=20/4
=5#

Answer 3

Remember a numeric changes from positive to negative or negative to positive when you move it from one side of the equation to the other. Therefore:

3y + (- 11) = 9 + ( - y)
3y + y (- 11) = 9
3y + y = 11 + 9
4y = 20
y = 20/4
y = 5

Answer 4

Taking -y and -11 to the opposite sides,

3y + y =9 + 11

4y = 20

y = 5

Answer 5

3y - 11 = 9 - y
3y + y = 9 + 11 ( put like terms together)
4y = 20
y = 20/4 (divide both sides by 4)
y = 5

Answer 6

3y - 11 = 9 - y
3y + y = 9 + 11
4y = 20
y = 20/4
y = 5

Answer 7

here's how it is done..

first..you transpose -11 to the other side..
3y = -y + 9 + 11

then..you transpose -y to 3y..it gives you 4y..
3y + y = 9 + 11
4y = 9 + 11

then..you add what you can add..
4y = 20

then..you divide both sides by 4..the 4 in 4y will be cancelled..20 divided by 4 is equal to 5..

therefore..
y = 5

here is the solution..

3y - 11 = 9 - y
3y + y = 9 + 11
4y = 20
y = 5

Answer 8

3y - 11 = 9 - y
+ y to both sides
4y - 11 = 9
+ 11 to both sides
4y = 20
y = 5

Smiles

Answer 9

5

Answer 10

3y-11=9-y
put all letters on one side of equation and numbers on the other

so
4y= 11+9
y= 20/ 4
y=5