Question

А)-27x+220=-5 Б)7a=-310+3a В)-2x+16=5x-19 Г)25-3b=9-5b Д)3+11y=203+y Е)3×(4x-8)=3x-6

Answer 1

А) 8 целых 1/3
Б) -77,5
В) 5
Г) -8
Д) 20
Е) 2

Answer 2

Кажется так!!!Удачи)))

Answer 3

А)

To solve for x, we need to isolate the variable on one side of the equation. We can start by simplifying the left side of the equation by combining the -27x and 220 terms:

-27x + 220 = -5 -27x = -5 - 220 -27x = -225

Now, we can isolate x by dividing both sides by -27:

x = (-225) / (-27) x = 8.33 (rounded to two decimal places)

Therefore, the solution to the equation is x = 8.33.

Б)

We can simplify the equation by combining the like terms on each side of the equation. First, we can move all the terms with a to one side of the equation:

7a - 3a = -310

4a = -310

Then, we can isolate a by dividing both sides by 4:

a = -310 / 4 a = -77.5

Therefore, the solution to the equation is a = -77.5.

В)

To solve for x, we need to isolate the variable on one side of the equation. We can start by simplifying both sides of the equation:

-2x + 16 = 5x - 19

Add 2x to both sides:

16 = 7x - 19

Add 19 to both sides:

35 = 7x

Divide both sides by 7:

x = 5

Therefore, the solution to the equation is x = 5.

Г)

To solve for b, we need to isolate the variable on one side of the equation. We can start by simplifying both sides of the equation:

25 - 3b = 9 - 5b

Add 5b to both sides:

25 + 2b = 9

Subtract 25 from both sides:

2b = -16

Divide both sides by 2:

b = -8

Therefore, the solution to the equation is b = -8.

Д)

To solve for y, we need to isolate the variable on one side of the equation. We can start by simplifying both sides of the equation:

3 + 11y = 203 + y

Subtract y from both sides:

3 + 10y = 203

Subtract 3 from both sides:

10y = 200

Divide both sides by 10:

y = 20

Therefore, the solution to the equation is y = 20.

Е)

We can simplify the equation by distributing the 3 on the left side of the equation:

12x - 24 = 3x - 6

Then, we can simplify the equation by combining the like terms on each side of the equation:

12x - 3x = 24 - 6

9x = 18

Divide both sides by 9:

x = 2

Therefore, the solution to the equation is x = 2.