Question

Sixteen plus seven decreased by 4 times some number equals 3

Answer 1

16+7-4x=3
x = "some number"
x=5

4x5 = 20

16+7-20=3
23-20=3
3=3
this is true

Answer 2

X= 5....

16+7-4x= 3

-4x= -20

divide both numbers by -4 to get 5