Question

Q7) Simplify:
a) 3x + 3y - 2z+ x + 72 - 9y​

Answer 1

Answer:

yes

Step-by-step explanation:

3x + 3y - 2z+ x + 72 - 9y

3x+x+3y - 9y -2z+72

4x-6y-2z+72

Answer 2

Step-by-step explanation:

3x+x= 4x

3y-9y= -6y

therefore

4x-6y-2z+72 is ans