Question

What is 3=7(4 - 2u)-6u

Answer 1

u = 5/4

Explanation:

to evaluate for the value of u we would simply open the bracket and then evaluate for the value of u by collecting the like terms together.

solution

3=7(4 - 2u)-6u

3 = 28- 14u - 6u

collect the like terms

3 + 14u + 6u = 28

20u = 28 - 3

20u = 25

divide both sides by the coefficient of u which is 20

20u/20 = 25/20

u = 5/4

Answer 2

`u = 5/4`

Explanation:

Step 1: Distribute on the right side

`3 = 7(4 - 2u) - 6u`

`3 = (7 * 4) + (7 * -2u) - 6u`

`3 = 28 - 14u - 6u`

Step 2: Combine like terms

`3 = 28 + (-14u - 6u)`

`3 = 28 + -20u`

Step 3: Subtract 28 from both sides

`3 - 28 = 28 - 20u - 28`

`-25 = -20u`

Step 4: Divide both sides by -20

`-25 / -20 = -20u / -20`

`5/4 = u`

Answer:
`u = 5/4`