Question

Twice the difference of a number and 4 is equal to three times the sum of the number and 7. find the number

Answer 1

Let the number be x 
Then According to the equation : 
2(X-4)=3(x+5) 
2X-8=3X+15 
-23=3X-2X 
X=-23

Answer 2

the answer would be -8/5, 

hope this helps. ((';