|х+1|=2 |х|+3=6. |3х+5|-2=0

х+1=2 або х+1=-2. |х|=3. |3х+5|=2

х=1 х=-3. х=3 або х=-3. 3х+5=2 або

3х+5=-2

х=-1

х=-7

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3

Verified answer

Ответ:

Объяснение:

1. 0,4*6-0,4*4t=1.9-0.5*3t+0.5*7; -1,6t+1.5t=-2.4+1.9+3.5=3; t= -3/0.1= -30

2. 3x+2(0.5x-2.4)= -6; x(3+1)=-6+4.8=-1.2; x=-1.2/4=-0.3

3. 1) |x+1|=2; x+1=2; x₁=1; x+1=-2; x₂= -3

2)  |x|+3=6; x₁+3=6; x₁=3; x₂= -3

3) |3x+5|-2=0; |3x+5|=2; 3x+5=2; x₁= -1; 3x+5= -2 ;  x₂= -7/3