PROSZE POMOCY DAJE 100 PKT a) (5a-b) + (3b - 6a) b) (12a +3) +(-6a - 3) c) ( 4 - 7x) - ( 6 +x) d) ( .... Question from @kawaiinoekem

March 2022 2 8 Report

PROSZE POMOCY DAJE 100 PKT

a) (5a-b) + (3b - 6a) b) (12a +3) +(-6a - 3) c) ( 4 - 7x) - ( 6 +x) d) ( -5x + y ) - ( x - y )

Magda

Odpowiedź:

$a)\ \ (5a-b)+(3b-6a)=5a-b+3b-6a=-a+2b\\\\b)\ \ (12a+3)+(-6a-3)=12a+3-6a-3=6a\\\\c)\ \ (4-7x)-(6+x)=4-7x-6-x=-8x-2\\\\d)\ \ (-5x+y)-(x-y)=-5x+y-x+y=-6x+2y$

3 votes Thanks 2

Tabiaszcz

A] (5a-b) + (3b - 6a) = 5a - b + 3b - 6a = -a+2b

B] (12a +3) +(-6a - 3) =12a+3-6a-3 = 6a

C] ( 4 - 7x) - ( 6 +x) = 4 - 7x-6-x = -2-8x

D] ( -5x + y ) - ( x - y ) = -5x+y-x+y = -6x+2y

3 votes Thanks 2

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