1) 3x+5+(x+5)=(1-x)- 2) x-3-4(x+1)=5(4- 3) 4x+4-3(x+1)=5(-2 4) 2x+2+3(x+4)=-4(1

Решение линейных уравнений:

1) 3x + 5 + (x + 5) = (1 - x) 3x + 5 + x + 5 = 1 - x 4x + 10 = 1 - x 4x + x = 1 - 10 5x = -9 x = -9/5 x = -1.8 2) x - 3 - 4(x + 1) = 5(4 - x) x - 3 - 4x - 4 = 20 - 5x -3x - 7 = 20 - 5x -3x + 5x = 20 + 7 2x = 27 x = 27/2 x = 13.5 3) 4x + 4 - 3(x + 1) = 5(-2) 4x + 4 - 3x - 3 = -10 x + 1 = -10 x = -11 4) 2x + 2 + 3(x + 4) = -4(1) 2x + 2 + 3x + 12 = -4 5x + 14 = -4 5x = -18 x = -18/5 x = -3.6

Ответ:

• 1) x = -1.8
• 2) x = 13.5
• 3) x = -11
• 4) x = -3.6