Question

3(x-7)=9(4x+5) what is the answer????

Answer 1

PEMDAS

3 ( x - 7 ) = 9 ( 4x + 5 ) 
3x - 21 = 36x + 45 
-36
-33x - 21 = 45 
                 +21

-33x = 66
------    ------
-33      -33 

x = -2

Your answer should be -2

I hope this helps!