Which is the first step needed to solve (4/7)x-5=-13
subtract 13 from both sides
divide both sides by seven
add five to both sides
multiply both sides by four

Which equation can be used to solve for the unknown number? seven less than a number is thirteen. n-7=13 7-n=13 n+7=13 n+13=7

The tuition costs, c, for a local community college are modeled by c(h) = 250 + 200h, where h represents the number of credit hours taken. the local state university has tuition costs, s, modeled by the function s(h) = 300 + 180h. how many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

What is the missing reason in the proof? segment addition congruent segments theorem transitive property of equality subtraction property of equality?