I need help on this my teacher didn't explain this please be fast this is due Jan/21/2021

#3-    4

#4-    2/3

#5-    -5

#6-    2/5

#7-    -1/4

#8-    -5/7

#9-    -4/6

#10-   0

#11-    undefined

I'm not sure if these are all right...

The / means that it is a fraction

Some fractions your may need to simplify

step-by-step explanation:

1

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w