Question

Ofer 30 de puncte
Să se rezolve ecuațiile:
a) 2x-11=9
b) -2(x-3)-3=x-2
c) 4(3-x)+2(x-5)=-3x+11
d) -3(4x-3)+2(3x+5)=-4(2x+15)-4
Va roggg repede.

Answer 1

a) 2x=20
x=10

b) -2x+6-3=x-2
-2x+3=x-2
-2x-x=-2-3
-3x=-5
x=$\frac{5}{3}$

c) 12-4x+2x+10=-3x+11
22-2x=-3x+11
-2x+3x=11-22
x=-11

d)-12x+9+6x+10=-8x-60-4
-6x+19=-8x-64
-6x+8x=-64-19
2x=-83
x=-41,5

Answer 2

Ai rezolvarile in imagine..