Question

HURRY PLEASE CAN SOME0ONE PLZ ANSWER FOR ME

Answer 1

Explanation:

1) -3b and 4b are like terms

2) 10y and -9y are like terms

3) 14z - 27z = -13z

4)

`(7)/(8)x-(1)/(2)x=(7)/(8)x-(1*4)/(2*4)x\\=(7)/(8)x-(4)/(8)x\\\\=(7-4)/(8)x=(3)/(8)x`

5)8+16r-9r = 8 + 7r