Question

Zad 35.

Zapisz w jak najprostszej postaci:

a) 5(x-2)+2x

b) -4(2y+1) + y

c) 5y-3(y-1)

d) (12x-4):4+1+x

e) -3(x-7)-(x+2)

f) -(x+2)-3(2x-4)+2(x-1)

Prosze o szybkie odpowiedzi.

Answer 1

a) 5x-10+2 = 7x -10
b) -8y -4 + y = -7y -4
c) 5y -3y +3 = 2y+3
d) 3x-1 +1 + x = 4x
e) -3(x-7)- (x+2)= - 3x+21- x-2= - 4x + 19
f)  -x - 2 - 6x+12+2x-2 = -5x + 8

Answer 2

a) 5(x-2)+2x=5x-10+2x=7x-10

b) -4(2y+1) + y=-8y-4+y=-7y-4

c) 5y-3(y-1)=5y-3y+3=2y+3

d) (12x-4):4+1+x=3x-1+1+x=4x

e) -3(x-7)-(x+2)=-3x+21-x-2=-4x+19

f) -(x+2)-3(2x-4)+2(x-1)=-x-2-6x+12+2x-2=-5x+8

 

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