Răspuns:
Explicație pas cu pas:
a) 7.(2x-1)=35 2x-1=5 2x=6 x=3
b) 3(2x + 5) =63 2x+5=21 2x=16 x=8
d) 8(5x+8)= -96 5x+8=-12 5x=-20 x=-4
e) -6(6x + 4) = 120 6x+4=-20 6x=-24 x=-4
g) 10(-8x+7)=-170 -8x+7=-17 8x=24 x=3
h) --12(7x +35)=0 7x+35=0 x=-5
1) -20(-9x -11) = -500 -9x-11=25 -9x=36 x=-4
k) 3(x+4) – 24 =-36 3(x+4)=-12 x+4=-4 x=-8