Question

vii. Add the following:
a) (7x+8y- 9z) + (5x + 4y - 10z)
b) (62 + 7b-8c) + (4a - b+ 2c)​

Answer 1

Step-by-step explanation:

a) (7x+8y- 9z) + (5x + 4y - 10z)

7x+8y- 9z + 5x + 4y - 10z

12x + 12y - 19 z

b) (62 + 7b-8c) + (4a - b+ 2c)

62 + 7b-8c + 4a - b+ 2c

62+ 4a +8b - 10c