1) 1.2х=1.2 2) -4.84х=-4.4 3) 225х=1.5 4)79+4х=81.8

1) 2 * х = 1.2;

х = 1.2 1.2;

х = 1;

x₁ = 1; x₂ = -1.

2) -4.84 х = -4.4;

х = -4.84 (-4.4);

х = 1.1;

x₁ = 1.1; x₂ = -1.1.

3) 225 х = 5;

х = 225 1.5;

х = 150;

x₁ = 150; x₂ = -150.

4) 79 + 4 х = 8;

4 х = 81.8 79;

4 х = 2.8;

х = 4 2.8;

х = 40/28 = 10/7 = 1 3/7.

x₁ = 1 3/7; x₂ = -1 3/7.