Tao wants to check that the expression 3(4x – 6) simplifies to 12x – 18. what is the value when 2 is substituted for x into both expressions?

Keywords:

Equation, simplified, variable, compare

For this case, we have an equation of the form, where . The equation was simplified and we want to find the value ofwhen the variable and compare the result of both equations. So:

(1)

We apply distributive property to simplify, taking into account that:

(2)

If , we substitute in the original equation and in the simplified equation:

1)

2)

Thus, when is substituted in both expressions, the result is 6.

For and , substituting we have the result is 6.

she played for 18.75 hours.

step-by-step explanation:

if she played 2/4 of a hour on tuesday. and there is 60 minutes in an hour and 60 divided by 4 is 7.5. and she played 2/4 of an hour on thursday then again 60 divided by 4 is 7.5, you add 7.5+7.5=56.25. now you have to do 1/4 of an hour, it equals 3.75. now you have to add them all up. 3.75+7.5+7.5=18.75

i hope this and i hope you get it right. it took me a while to get this done for you. : )