Question

-(4,2c-0,8d)-(5d+1,3c)+(-2,2c+1,7d)​

Answer 1

-(4,2c-0,8d)-(5d+1,3c)+(-2,2c+1,7d)​= -4,2c+0,8d-5d-1,3c-2,2c+1,7d​ = -4,2c+0,8d-5d-1,3c-2,2c+1,7d= -7,7c-2,5d

Answer 2

To simplify the expression -(4.2c - 0.8d) - (5d + 1.3c) + (-2.2c + 1.7d), you can distribute the negative sign and then combine like terms:

-(4.2c - 0.8d) - (5d + 1.3c) + (-2.2c + 1.7d)

First, distribute the negative sign in front of each term within parentheses:

-4.2c + 0.8d - 5d - 1.3c - 2.2c + 1.7d

Now, combine like terms:

(-4.2c - 1.3c - 2.2c) + (0.8d - 5d + 1.7d)

Simplify each term separately:

-7.7c + (-3.5d + 1.7d)

Now, combine like terms again:

-7.7c - 1.8d

So, the simplified expression is -7.7c - 1.8d.