Perform the indicated operation

Question

-4 x + 10 ) + ( 9 x + 2 )

15 + ( -6 a + 5 )

( 10 b + 12 c ) + ( 3 b -12 c)

( 7
y3
y3

-y + 11 ) + (
y3
y3

- 2y² - 5 )

( 13 m² -m -1 ) - ( 2m² +5m -3 )

Answer 1

(13m^2 - m - 1) - (2m^2 + 5m - 3)
= 13m^2 - m - 1 - 2m^2 - 5m + 3
= 11m^2 - 6m + 2

do the others in like wise.
Post your work if you get stuck.
and lose the annoying vertical text columns