Question

27. Solve the equation.

Answer 1

Answer: r=-56

Step-by-step explanation:

multiply 7 on both sides

$\frac{7r}{7}=7\left(-8\right)$

7*-8=-56

7 and 7 is eliminated

so x=-56

Answer 2

Answer:

r= -56

Step-by-step explanation:

The equation given is:

$\frac{r}{7}= -8$

We want to solve for r. In order to do this, we must get r by itself.

Currently, r is being divided by 7. We want to perform the inverse, which is multiplication. Therefore, we should multiply both sides of the equation by 7.

$7*\frac{r}{7}= -8 * 7$

$r=-8*7$

$r= -56$

Let's check our solution. Substitute -56 back in for r and solve.

$\frac{r}{7}= -8$

$\frac{-56}{7}= -8$

$-8=-8$

Both sides of the equation are the same, so we know our answer is correct.