Question

1) 1,7x−1,2y−1,7x+0,5y 2)2а -3в+4а-2в= * 3)2a – 5 – a + 4= * 4)-4х +5х +13х -15х = * 5)-7х +5у +3х -10у= * 6)6а - 17а +19а -8а= * 7)у + 0,65у + (-2,75) + (-0,65х) – х= * 8)3x – 5 – 2x + 7= *

Answer 1

Ответ:

1) 0.7у

2)6а-5в

3)а-1

4)-х

5)-4х-5у

6)0

7)-2,75

8)х+2

Пошаговое объяснение:

Answer 2

To simplify the given expressions, let's combine like terms:

1. 1,7x - 1,2y - 1,7x + 0,5y

Combine "x" terms: (1.7x - 1.7x) = 0x

Combine "y" terms: (-1.2y + 0.5y) = -0.7y

The simplified expression is: -0.7y

2. 2a - 3b + 4a - 2b

Combine "a" terms: (2a + 4a) = 6a

Combine "b" terms: (-3b - 2b) = -5b

The simplified expression is: 6a - 5b

3. 2a - 5 - a + 4

Combine "a" terms: (2a - a) = a

Combine constants: (-5 + 4) = -1

The simplified expression is: a - 1

4. -4x + 5x + 13x - 15x

Combine "x" terms: (-4x + 5x + 13x - 15x) = -x

The simplified expression is: -x

5. -7x + 5y + 3x - 10y

Combine "x" terms: (-7x + 3x) = -4x

Combine "y" terms: (5y - 10y) = -5y

The simplified expression is: -4x - 5y

6. 6a - 17a + 19a - 8a

Combine "a" terms: (6a - 17a + 19a - 8a) = 0a

The simplified expression is: 0a, which is just 0.

7. y + 0.65y + (-2.75) + (-0.65x) - x

Combine "y" terms: (y + 0.65y) = 1.65y

Combine "x" terms: (-0.65x - x) = -1.65x

Combine constants: (-2.75) = -2.75

The simplified expression is: 1.65y - 1.65x - 2.75

8. 3x - 5 - 2x + 7

Combine "x" terms: (3x - 2x) = x

Combine constants: (-5 + 7) = 2

The simplified expression is: x + 2