Question

3[3x - {y - (z - 2x + 5y) - 2(y – 5x + z)}]​

Answer 1

Answer:

The answer is 9(-3x + 2y + z) .  

Step-by-step explanation:

3[3x - {y - (z - 2x + 5y) - 2(y - 5x + z)}]  

= 3[3x - {y - z + 2x - 5y - 2y + 10 - 2z}]  

= 3[3x - (12x - 6y - 3z)]  

= 3[3x - 12x + 6y + 3z]  

= 3( -9x + 6y + 3z)    

= 9( -3x + 2y + z)