Question

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simplifique as expressões algébricas:

a)4(×-1)+3(x+1)

b)--2(2x--4)+5(--2x--10)

c)⅖(x--0,2)+½(3x--4/25)​

Answer 1

a) 4 (x-1) +3 (x+1)

4x -4 +3x -3

7x-1

b) -2 (2x-4) +5 (-2x-10)

-4x +8 -10x -50

-14x-42

c) ⅖(x--0,2)+½(3x--4/25)

2/5 (x -1/5) +3/2x -2/25

2/5x -2/25 +3/2x -2/25

19/10x -4/25