Louisa's savings change by -$9 each time she goes bowling. in all it changed by -$99 during the summer. how many times did she go bowling in the summer?

She went 11 times.

Step-by-step explanation:

Given,

The change in saving in each time she goes bowling = -$ 9,

If she goes t times,

The change in saving for going t times = t × change in saving in each time

= t × -9

= -9t dollars,

According to the question,

-9t = -99

Hence, she went 11 times to bowling.

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

c

step-by-step explanation: