Question

Add the following expressions:
a.2xy + 5xyz + 3
b.- 5xy + 6xyz + 9
c.- 10xyz + 2xy – 4z + 10
Can anyone answer these with step by step explanation...
Class 7 algebra

Answer 1

Answer:

(2xy+5xyz+3)+(-5xy+6xyz+9)+(-10xyz+2xy-4z+10)

2xy+5xyz+3-5xy+6xyz+9-10xyz+2xy-4z+10

2xy-5xy+2xy+5xyz+6xyz-10xyz-4z+3+9+10

-5xy+xyz-4z+22