Question

-(3,1с-1,7d)-(3d+1,2c)-(-2,1c+1,4d)

Answer 1

-3,1с+1,7d-3d-1,2c+2,1c-1,4d=-2,2c-2,7d

Answer 2

To simplify the given expression, let's perform the indicated operations step by step:

1. -(3,1c-1,7d) => -3 - 1c + 1.7d
2. -(3d+1,2c) => -3d - 1.2c
3. -(-2,1c+1,4d) => 2 + 1c + 1.4d

Now, we combine all the simplified terms:

(-3 - 1c + 1.7d) - (3d + 1.2c) - (2 + 1c + 1.4d)

Now, let's combine like terms:

-3d - 1c + 1.7d - 1.2c - 2 - 1.4d

Now, let's group the like terms together:

(-3d + 1.7d) + (-1c - 1.2c) - 2

Simplify the coefficients:

-1.3d - 2.2c - 2

So, the simplified expression is:

-1.3d - 2.2c - 2