Question

OFER COROANA! AM NEVOIE RAPID! AM NEVOIE SI DE MOD DE REZILIERE!​

Answer 1

Răspuns:

a) -2x-2=8 | -2x=8+2 | -2x=10/×(-1) | 2x=-10 | x=-10/2 | x=-5

b) 3x+6=6 | 3x=6-6 | 3x=0 | x=0/3 | x=0

c) 8-4x=8 | -4x=8-8 | -4x=0/×(-1) | 4x=0 | x=0/4 | x=0

d) 7/x-1=-1/×x-1 | x-1×7/x-1=-(x-1) | 7=-x+1 | -x=1-7 | -x=-6/×(-1) | x=6

e) x+2/4=0 | x+2=0 | x=-2

f) 3-x/3=-1|×3 | 3×3-x/3=-3 | 3-x=-3 | -x=-3-3 | -x=-6/×(-1) | x=6

g) 10/x-1=-5|×x-1 | x-1×10/x-1=-5×(x-1) | 10=-5x+5 | 5x=5-10 | 5x=-5 | x=-5/5 | x=-1

h) -4/1-x=1|×1-x | 1-x×-4/1-x=1-x | -4=1-x | x=1+4 | x=5

i) 2x-1/3=-1|×3 | 3×2x-1/3=-3 | 2x-1=-3 | 2x=-3+1 | 2x=-2 | x=-2/2 | x=-1

j) 3x+1/2=-4|×2 | 2×3x+1/2=-8 | 3x+1=-8 | 3x=-8-1 | 3x=-9 | x=-9/3 | x=-3

k) 4x+1/3=3|×3 | 3×4x+1/3=9 | 4x+1=9 | 4x=9-1 | 4x=8 | x=8/4 | x=3

l) -6x+2=-4 | -6x=-4-2 | -6x=-6/×(-1) | 6x=6 | x=6/6 | x=1

Sper că te-am ajutat!