Question

Solve for r. 7(r+1) = 20.3

Answer 1

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{r = 1.9}}}}}$

Step-by-step explanation:

$\sf{7(r + 1) = 20.3}$

Distribute 7 through the parentheses

⇒$\sf{7r + 7 = 20.3}$

Move 7 to right hand side and change it's sign

⇒$\sf{7r = 20.3 - 7}$

Subtract 7 from 20.3

⇒$\sf{7r = 13.3}$

Divide both sides of the equation by 7

⇒$\sf{ \frac{7r}{7} = \frac{13.3}{7} }$

Calculate

⇒$\sf{r = 1.9}$

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Answer 2

r is 1.9

Solve  7(r+1) = 20.3

Remove the brackets by dividing both sides by 7:

7(r+1) / 7 = 20.3 / 7

r + 1 = 2.9

Take 1 to the other side so that you can be left with r. When you do this, the sign will change from positive to negative:

r = 2.9 - 1

r = 1.9

r is therefore 1.9

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