Question

Решите уравнения: 1)8-5х+х=16 2)4,8х-5,5-х=-18,8 3)12х-5,9-7,5х+3,2=-4,05 4)9,1х+2-х-6=-52,6

Answer 1

1) -4х = 8
х = 8/-4
х = -2

2) -0,7х = -18,8
х = -188/10 : -7/10
х = -188·10/-7·10
х = 188/7

3) 4,5х = -4,05 + 5,9 - 3,2
4,5х = -1,35
х = -135/100 : 45/10
х = -135·10/45·100
х = -3/10
х = -0,3

4)9,1х - х = -52,6 - 2 +6
8,1х = -48,6
х = -486/10 : 81/10
х = -486·10/81·10
х = -486/81
х = -6

Answer 2

I can help you solve equations. Here are the solutions to your equations:

1) $$8-5x+x=16$$ To solve this equation, we need to simplify the left side and then isolate x. We can do this by following these steps:

- Combine the like terms on the left side: $$8-5x+x=8-4x$$ - Subtract 8 from both sides: $$8-4x-8=16-8$$ - Simplify both sides: $$-4x=8$$ - Divide both sides by -4: $$\frac{-4x}{-4}=\frac{8}{-4}$$ - Simplify both sides: $$x=-2$$

The solution is $$x=-2$$.

2) $$4.8x-5.5-x=-18.8$$ To solve this equation, we need to simplify the left side and then isolate x. We can do this by following these steps:

- Combine the like terms on the left side: $$4.8x-5.5-x=3.8x-5.5$$ - Add 5.5 to both sides: $$3.8x-5.5+5.5=-18.8+5.5$$ - Simplify both sides: $$3.8x=-13.3$$ - Divide both sides by 3.8: $$\frac{3.8x}{3.8}=\frac{-13.3}{3.8}$$ - Simplify both sides: $$x=-3.5$$

The solution is $$x=-3.5$$.

3) $$12x-5.9-7.5x+3.2=-4.05$$ To solve this equation, we need to simplify both sides and then isolate x. We can do this by following these steps:

- Combine the like terms on the left side: $$12x-5.9-7.5x+3.2=4.5x-2.7$$ - Add 2.7 to both sides: $$4.5x-2.7+2.7=-4.05+2.7$$ - Simplify both sides: $$4.5x=-1.35$$ - Divide both sides by 4.5: $$\frac{4.5x}{4.5}=\frac{-1.35}{4.5}$$ - Simplify both sides: $$x=-0.3$$

The solution is $$x=-0.3$$.

4) $$9.1x+2-x-6=-52.6$$ To solve this equation, we need to simplify both sides and then isolate x. We can do this by following these steps:

- Combine the like terms on the left side: $$9.1x+2-x-6=8.1x-4$$ - Add 4 to both sides: $$8.1x-4+4=-52.6+4$$ - Simplify both sides: $$8.1x=-48.6$$ - Divide both sides by 8.1: $$\frac{8.1x}{8.1}=\frac{-48.6}{8.1}$$ - Simplify both sides: $$x=-6$$

The solution is $$x=-6$$.

You can also use online tools to solve equations, such as [Mathway](https://www.mathway.com/Calculator/equation-solver) or [Microsoft Math Solver](https://mathsolver.microsoft.com/en/solver). They can show you the steps and provide additional examples. You can also check out some [popular problems](https://mathsolver.microsoft.com/en/popular-problems) that other users have solved. I hope this helps you with your math homework. Have a nice day!