8th grade pre algerbra

[unknown offline]

i have a question and i have tried everything !
rember this is 8th grade math...
question- rewrite 6+7x2-5 so that it equals 21.

[unknown offline]

forget this...
i will get help at school

[puddinggreg offline]

The order of operations needs to be changed. What you currently have is 15, but tweak it to look like this:

(6+7)x2-5

and the answer will be 21