Question

The equation 7(u-5)=21 is solved in several steps below. For each step, choose the reason that best justifies it.

Answer 1

`u = 8`

Explanation:

The steps are not shown. So, I will solve from scratch

Given

`7(u -5) = 21`

Required

Solve, with steps

`7(u -5) = 21`

Apply distributive property

`7u - 7 * 5 =21`

`7u - 35 =21`

Collect like terms

`7u = 35 + 21`

`7u = 56`

Divide both sides by 7

`(7u)/(7) = (56)/(7)`

`u = 8`