29=3(5x+1)-4
Mutiply the bracket by 3
(3)(5x)= 15x
(3)(1)= 3
29= 15x+3-4
29= 15x-1
Move -1 to the other side.
Sign changes from -1 to +1.
29+1= 15x-1+1
29+1= 15x
30= 15x
divide by 15 for both sides
30/15= 15x/15
Cross out 15 and 15, divide by 15 and then becomes 1*1*x= x
x= 2
Answer: x= 2