Question

Enter the value of x that makes the equation 3(3x+4)=12x-15 true

Answer 1

9

Explanation:

3(3x+4)=12x-15

or,3x+4=3(4x-5)/3

or,3x+4=4x-5

or,4+5=4x-3x

or,9=x

.:x=9

Hence,

x=9

Answer 2

3x=27

Explanation:

3(3x+4)=12x-15

9x+12=12x-15

-9x -9x

___________

12=3x-15

+15 +15

_________

27=3x

3x=27