How do you solve #-5x - 10 = 2 - (x + 4) #?
↳Redirected from
"What is the oxidation state of copper in #"CuSO"_4#?"
1 Answer
Jan 16, 2017
The solution is -2
Explanation:
when minus is in front of brackets, it 'changes' minus into plus in the brackets and vice versa
