Question

Bună dimineața ma poate ajuta cineva DAU COROANA sa se rezolve ecuațiile în r 6-3×(1-x)+2(x-5)=3 5x-4(2x+3) =3-2(4-5x) . 3[3×(3x-1) +3]=54. 3×(2x+1)-5(x+2)=3x-4. 4x+2(3x-1)=1+3(x-1) 2+2×[2+2×(x+2)]=14.
2x+4(1-x)=2+2×(2x+5​

Answer 1

$6 - 3 \times (1 - x) + 2(x - 5) = 3 \\ 6 - 3 + 3x + 2x - 10 = 3 \\ 5x - 7 = 3 \\ 5x = 10 \\ x = 2$

$5x - 4(2x + 3) = 3 - 2(4 - 5x) \\ 5x - 8x - 12 = 3 - 8 + 10x \\ - 3x - 12 = - 5 + 10x \\ - 13x = 7 \\ 13x = - 7 \\ x = - \frac{7}{13}$

$3(3 \times (3x - 1) + 3) = 54 \\ 3(9x - 3) = 54 \\ 27x - 9 = 54 \\ 27x = 63 \\ x = \frac{63}{27} \\ x = \frac{7}{3}$

$3 \times (2x + 1) - 5(x + 2) = 3x - 4 \\ 6x + 3 - 5x - 10 = 3x - 4 \\ x + - 7 = 3x - 4 \\ - 2x = 3 \\ 2x = - 3 \\ x = - \frac{3}{2}$

$4x + 2(3x - 1) = 1 + 3(x - 1) \\ 4x + 6x - 2 = 1 + 3x - 3 \\ 10x - 2 = 3x - 2 \\ 7x = 0 \\ x = 0$

$2 + 2(2 + 2(x + 2)) = 14 \\ 2 + 2(2 + 2x + 4) = 14 \\ 2 + 4 + 4x + 8 = 14 \\ 4x + 14 = 14 \\ 4x = 0 \\ x = 0$

$2x + 4(1 - x) = 2 + 2 \times (2x +5 ) \\ 2x + 4 - 4x = 2 + 4x + 10 \\ 4 - 2x = 4x + 12 \\ - 6x = 8 \\ 6x = - 8 \\ x = - \frac{8}{6} \\ x = - \frac{4}{3}$