Question

1)7a-19a+28a-2a=14а 2)-8x+16x-23x+17x=2х 3)2,7m-n+3,5m-2,7n=6,2m-3,7n 4)2,9t+1,8-5,2t-1,2=-2,3t+0,6 5)2,6p-0,7k-1,3-3,1p+2,8k=-0,5p+2,1k-1,3

Answer 1

Ответ:

1)24а

2)2х

3)6,2m-3,7n

4)-2,3с+0,6

5)-0,5р+2,1k+1,3

6)1/14а+4/9-7/15b

Пошаговое объяснение:

просто смотри буквы минус буквами минус простой цифрами

Answer 2

Let's simplify each equation:

1. 7a - 19a + 28a - 2a = 14a

Combining like terms, we have:

14a - 19a = 14a

-5a = 0

Dividing both sides by -5, we get:

a = 0

So, the solution to this equation is a = 0.

2. -8x + 16x - 23x + 17x = 2x

Combining like terms, we have:

2x - 23x = 2x

-21x = 0

Dividing both sides by -21, we get:

x = 0

So, the solution to this equation is x = 0.

3. 2.7m - n + 3.5m - 2.7n = 6.2m - 3.7n

Combining like terms, we have:

6.2m - 3.7n = 6.2m - 3.7n

The equation simplifies to itself since all the terms cancel out.

So, this equation is true for any values of m and n.

4. 2.9t + 1.8 - 5.2t - 1.2 = -2.3t + 0.6

Combining like terms, we have:

-2.3t - 2.3t = -2.3t

-4.6t + 1.8 - 1.2 = -2.3t + 0.6

-4.6t + 0.6 = -2.3t + 0.6

-4.6t = -2.3t

Subtracting 0.6 from both sides, we get:

-4.6t - 0.6 = -2.3t

-4.6t + 2.3t - 0.6 = 0

-2.3t - 0.6 = 0

Adding 2.3t to both sides, we get:

-2.3t - 0.6 + 2.3t = 0

-0.6 = 0

This equation is not possible because it leads to a contradiction. There is no solution.

5. 2.6p - 0.7k - 1.3 - 3.1p + 2.8k = -0.5p + 2.1k - 1.3

Combining like terms, we have:

-0.5p + 2.1k - 1.3 = -0.5p + 2.1k - 1.3

The equation simplifies to itself since all the terms cancel out.

So, this equation is true for any values of p and k.