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Mathematics 8 Online
OpenStudy (anonymous):

four times the sum of a number and -3 is 4 more than twice the number write and solve an equation to find the number

OpenStudy (anonymous):

well what does sum mean?

OpenStudy (anonymous):

idk

OpenStudy (anonymous):

addition. The sum of two numbers means you are adding them together

OpenStudy (anonymous):

can u show me how to solve it plz?

OpenStudy (anonymous):

I'm working on it. Just trying to make sure you understand.

OpenStudy (anonymous):

k

OpenStudy (anonymous):

so let's make some number=x

OpenStudy (anonymous):

the sum of some number and -3 means. x+(-3) or x-3. We good so far?

OpenStudy (anonymous):

yes just keep going

OpenStudy (anonymous):

now if we need 4 times the sum of a number and 3 that makes it 4(x-3)

OpenStudy (anonymous):

k

OpenStudy (anonymous):

and if 4 times the sum of a number and -3 is 4 more than twice the number we have \[4(x-3)>2x-4\]

OpenStudy (anonymous):

now you just have to solve for x

OpenStudy (anonymous):

so whts the answer

OpenStudy (anonymous):

\[x >4\]

OpenStudy (anonymous):

thnxs

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