(-3)+(+12) = (-15)+(-10) = (+15) +(-10) = (-15)+(-3) = (+6)+(+5) = (-7)+(-5) =

(+9)+(+4) = (+9)+(+11) = (+10)+(+11) =
(-15)+(+15) = -7)+(+5)= (-2)+(+11) =

(+11)+(-3) = (-9)+(-14) = (+14)+(+11) =
-5)+7)= (-10)+(+2) = (+4)+(+13) =
(+11)+(+13) = (4)+(-7) =
(-14)+(+5) =

(+5)+(-14) =
Pls help me rn this is 20 pont!
-7)+(-12)=

(-1)+(+10) = -5)+(-11)=
(-3)(-10)= (-8)+(-5)=

(+8)+(-12) = (-10)+(-9)= (1)+(+3)=

i don't even know man. edge inuity be messing with us. i had to ask a question too.

step-by-step explanation:

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -

just keep asking questions until you have a better understanding.

step-by-step explanation: