SOLUTION: Having problem helping daughter with homework, {{{65x-(-12x)}}} thank you very much

Question 9358: Having problem helping daughter with homework,
thank you very much
Found 2 solutions by longjonsilver, JimMarshall:
Answer by longjonsilver(2297) (Show Source): You can put this solution on YOUR website!
when you have 2 symbols together like here, , there are rules that help to simplify. I have written a Lesson on this website that explains these very simple rules (but to be honest, rather difficult to explain why, in a meaningful way).

Anyway - and - can be thought of as + so we get which in turn is 77x

jon.

Answer by JimMarshall(82) (Show Source): You can put this solution on YOUR website!
65x - ( -12x )
==> 65x + 12 x ( -ve multipled by -ve = +ve Fix Rule )
==> 77x.
Ans s
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