Question

1)а-(2,4+а) 2) -(1,6+в)+в 3)-5в-(8а-5в) 4)(x+y)-(x-y) 5) -(1-x)-(5,1+x)

Answer 1

Ответ:

1) a -2,4 -$a^{2}$

2) -1,6 - в + в = -1,6

3) -5в + 8a +5в = 8a

4) x + y -x + y = 2y

5) -1 +x -5,1 -x= -6,1

Answer 2

Let's simplify the given expressions:

1. а - (2,4 + а) To simplify this expression, we can remove the parentheses and combine like terms: а - 2.4 - а = -2.4

2. -(1.6 + в) + в Again, we can remove the parentheses and combine like terms: -1.6 - в + в = -1.6

3. -5в - (8а - 5в) Remove the parentheses and combine like terms: -5в - 8а + 5в = -8а

4. (x + y) - (x - y) Remove the parentheses and combine like terms: x + y - x + y = 2y

5. -(1 - x) - (5.1 + x) Remove the parentheses and combine like terms: -1 + x - 5.1 - x = -6.1

Simplified expressions:

1. а - (2,4 + а) = -2.4
2. -(1,6 + в) + в = -1.6
3. -5в - (8а - 5в) = -8а
4. (x + y) - (x - y) = 2y
5. -(1 - x) - (5,1 + x) = -6.1