pinkPrincessLol pinkPrincessLol

16-06-2021
Mathematics

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karlenisjimenez karlenisjimenez

16-06-2021

Answer:

a+b

Step-by-step explanation:

you have to multiply

7(3a-2b) 5(3b-4a)

7x3=21 5x3=15

7x2=14 5x4=20

(21a-14b) (15b-20a)

add them

21a-14b+15b-20a

21a-20a=1a

-14b+15b=1b

1a+1b

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