Question

I need help on this question 5(x - 4) = 12

Answer 1

`\boxed{(32)/(5),~ 6(2)/(5) ~, 6.4}`

Solution Steps:

- Steps for solving linear equations -

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1.) Divide both sides by 5:

• 
  `5` ÷
  `5=` Cancels out

• 
  `12` ÷
  `5=`
  `(12)/(5)`

- I changed
`(12)/(5)` to a fraction instead, and you'll see why on the next step.

2.) Add 4 to both sides:

• 
  `-4+4=` Cancels out

• 
  `4=(20)/(5)`

- 4 in fraction form would best be
`(20)/(5)` in this situation.

3.) Add:

• 
  `(12)/(5) + (20)/(5) = (32)/(5)`

- Since
`(12)/(5)` and
`(20)/(5)` have the same denominator, all you have to do is add the numerators.

4.) Simplify:

• Improper fraction form:
  `(32)/(5)`

• Mixed number form:
  `6(2)/(5)`

• Decimal form:
  `6.4`

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