X+ 64 = 72 what does "x" equal? ? explain

X + 64 = 72

since there is an equal sign, you must do the exact same thing you do on one side to the other

isolate the x

x + 64 (-64) = 72 (-64)

x = 72 - 64

x = 8

8 is your answer

hope this helps

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)