Question

solve using the multiplication principle
-18=19y
Im lost with this one

Answer 1

the multiplication rule explains that if you multiply or divide both sides of an equatio nby the same number you arrive at the same answer.

so, 5x = 3y is the same as (5x)/5 = (3y)/5

Answer 2

Inf your case, -18 = 19y, but ALSO, -18/19 = 19y/19 this is helpful because 19y/19 equals y, so now you've solved for y by not changing the equation illegally

Answer 3

so "solving" an equation just means multiplying/dividing by whatever you need to on both side of the equation using a number that will get rid of another number. in this case, dividing both sides by 19 leaves y all by itself.

Answer 4

ok so my answer would be 19

Answer 5

well nope, not quite.

Answer 6

you're dividing each side by 19 but y = -18/19

Answer 7

so -18/19 is your answer. that is what "solving" using the multiplication principle means here.

Answer 8

so because 19y/19 equals y this is why the letter y isn't in the final answer?