Question

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

Answer 1

Answer:

$\boxed{\frac{32}{5},~ 6\frac{2}{5} ~, 6.4}$

Solution Steps:

- Steps for solving linear equations -

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1.) Divide both sides by 5:

• $5$ ÷ $5=$ Cancels out

• $12$ ÷ $5=$ $\frac{12}{5}$

 - I changed  $\frac{12}{5}$ to a fraction instead, and you'll see why on the next step.

2.) Add 4 to both sides:

• $-4+4=$ Cancels out

• $4=\frac{20}{5}$

 - 4 in fraction form would best be $\frac{20}{5}$ in this situation.

3.) Add:

• $\frac{12}{5} + \frac{20}{5} = \frac{32}{5}$

- Since $\frac{12}{5}$ and $\frac{20}{5}$ have the same denominator, all you have to do is add the numerators.

4.) Simplify:

• Improper fraction form: $\frac{32}{5}$

• Mixed number form: $6\frac{2}{5}$

• Decimal form: $6.4$

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