Question

Gente preciso resolver isso..
A) 5.(×-1)-3 (×+2)=0
B) 8.(×-1)=8-4.(2×-3)
C) 4 (×+10)-2 (×-5)=0
Me ajuda porfavro genteagradeço de coração

Answer 1

A) 5. (X _ 1) -3 (x+2)=0
5x - 5 - 3 X - 6=0
5x - 3x = 5 +6
2x = 11
X= 11 / 2

B) 8. ( X - 1)= 8 - 4. ( 2 X -3)
8x - 8 = 8 - 8x + 12
8x -8x= 8+8+ 12
X =28

C) 4 (X+ 10) -2 ( X -1) =0
4x+ 40 - 2x + 2 = 0
4x -2x= _ 40-2
2x= _ 38
X= _38 / 2
X= _ 19