Respuesta :
Answer:
3. z = 0
I could only find the answer for number 3. I'm sorry! I hope this helps anyway!
Answer:
It might be very wrong
3. 6z + 12 = 30z + 12
0 = 24z
z = 0
4. 3x +3 +1 +2x = 4x +4+ x
4 +5x = 5x +4
0 = 0
5. - 2b = - 2b +4+3-3
0 = 4