Astray dog ate 12 of your muffins. that was 3/10 of all of them. with how many did you 8th grade 1 step equation problem. need asap

12=3/10x
12/3=4
4*10=40

You had 40 muffins.

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)

Its d so thats how it would would back from 1.0 form three four two