Question

Please simplify each expression with workings if can.
I will be very thankful

15n-19n
-3x-9+15x
12r+5+3r-5-6r
n+4-9-5n
9a+10(6a-1)
-4+7(1-3m)
5(-2n+4)+2(n+3)
10(1-9x)+6(x-10)

Answer 1

Answer:

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Answer 2

Answer:

,

Step-by-step explanation:

see the attachment......❤️❤️