m-77=222 can be solved by isolating the variable. In this case, our variable is m. We can isolate it by undoing whatever term is with it on that side.
m-77 is what we have on the left side of the equation. The opposite of subtraction is addition, so we can add 77 to both sides of the equation, therefore moving it over
m-77=222
+77 +77
m= 222+77
Now, we have m=222+77. We can now simplify the right side of the equation by adding 222+77.
Simply think of each fold as doubling the number of holes. So since we have 6 folds, that will be 2^6 and then we have 2 holes in those folds, which makes 2*2^6 == 2^7 == 128 holes. Cheers.
1. Analyze: There are 60 people total and there is 5x more pants than skirts. This outrules 60 and 50.
2: Testing put all of your numbers into an equation. Since you need the total to be 60 you can do this. I am using p(pants) S(skirts for my example. S+S5=60 10 works in this equation.
