Question

Х : (-1,5)= - 9; пж добомога в) (х+6) : (– 1) = 25; г) (х – 4) : 6 + 39 = – 13

Answer 1

Ответ:

х : (-1,5)= - 9;

x : (-3:2)= - 9;

- x * 2:3= - 9;

-2:3x= - 9;

x= 27:2;

x=13 1:2

(х+6) : (– 1) = 25;

-(x+6)=25;

-x=25+6;

-x=31;

x=-31;

(х – 4) : 6 + 39 = – 13;

x-4:6+39=-13;

x+230=-78;

x=-78-230;

x=-380;

Answer 2

I can help you solve these equations. Here are the steps:

a) $x + (-1.5) = -9$

- Add $1.5$ to both sides of the equation: $x + (-1.5) + 1.5 = -9 + 1.5$ - Simplify: $x = -7.5$ - The solution is $x = -7.5$

b) $(x + 6) : (-1) = 25$

- Multiply both sides of the equation by $-1$: $(x + 6) : (-1) \times (-1) = 25 \times (-1)$ - Simplify: $-(x + 6) = -25$ - Add $x + 6$ to both sides of the equation: $-(x + 6) + (x + 6) = -25 + (x + 6)$ - Simplify: $0 = x - 19$ - Add $19$ to both sides of the equation: $0 + 19 = x - 19 + 19$ - Simplify: $19 = x$ - The solution is $x = 19$

c) $(x - 4) : 6 + 39 = -13$

- Subtract $39$ from both sides of the equation: $(x - 4) : 6 + 39 - 39 = -13 - 39$ - Simplify: $(x - 4) : 6 = -52$ - Multiply both sides of the equation by $6$: $(x - 4) : 6 \times 6 = -52 \times 6$ - Simplify: $x - 4 = -312$ - Add $4$ to both sides of the equation: $x - 4 + 4 = -312 + 4$ - Simplify: $x = -308$ - The solution is $x = -308$