Question

How do you solve `-33 = -6r +9`?

Answer 1

`r=7`

Explanation:

`−33=−6r+9`

`6r= 33+9`

`6r=42`

`r=42/6`

`r=7`

Answer 2

r = 7

Explanation:

To solve this equation , first add 6r , to both sides and then add 33 to both sides , as follows :

ie - 33 + 6r = - 6r + 9 + 6r

simplifies to : - 33 + 6r = 9

now add 33 to both sides

ie - 33 + 6r + 33 = 9 + 33

hence : 6r = 42

now divide both sides by 6

`(cancel(6) r)/cancel(6) = 42/6`

`rArr r = 7`

Answer 3

`r=7`

Explanation:

`color(blue)(-33=-6r+9`

`rarr-33-9=-6r`

`rarr-42=-6r`

`rarrr=(-42)/-6=42/6=color(green)7`

Because,

`color(orange)((-a)/-b=a/b`