What operations would Addison perform, and in what order would Addison perform them, to solve 5n+ 15 = 20 ? A.
add 15, multiply by 5 on both sides
B.
subtract 15, divide by 5 on both sides
ОООО
C. multiply by 5, add 15 on both sides
D.
divide by 5, subtract 15 on both sides

I think it’s C because 5n means multiplying both integers

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.