Solve the equation 3(x − 7) + 9x = 4(3x + 2). Explain what the result means. SOMEONE PLSSS HELP

Answer: 0 does not =29 and result means the effect of a sequence
Step-by-step explanation:
3(x-7) +9x= 4(3x+ 2)
3x -21 +9x= 12x +8
12x -21=12x +8
0 does not= 29