You're on the right track. Start by combining like terms on the left side of the equation by adding 56 and 34.
90 = n + 30, now subtract 30 from both sides of the equation to isolate the variable n.
60 = n is the answer.
W+2 the answer is this because u figure out the factor of W
A counter-example could be
There are more than 3 marbles in the bag, and the other ones are red.
Hope this helps!
