Question

5m-(3m+5n)+(2m-4n)0,4*(1,5y+3x)-2,5*(3x-0,6y)​

Answer 1

5m-(3m+5n)+(2m-4n)=5m-3m-5n+1m-4n=6m-9n
0,4*(1,5y+3x)-2,5*(3x-0,6y)=0,6y+1,2x-7,5x+1,5y=2,1x-6,3x

Answer 2

Let's simplify the given expressions step by step:

1. 5m - (3m + 5n) + (2m - 4n)

First, let's simplify the inner parentheses by applying the distributive property:

5m - (3m + 5n) + (2m - 4n) = 5m - 3m - 5n + 2m - 4n

Now, let's combine like terms:

= (5m - 3m + 2m) + (-5n - 4n) = 4m - 9n

Therefore, the simplified expression is 4m - 9n.

2. 0.4 * (1.5y + 3x) - 2.5 * (3x - 0.6y)

Again, let's simplify the inner parentheses first:

0.4 * (1.5y + 3x) - 2.5 * (3x - 0.6y) = 0.4 * 1.5y + 0.4 * 3x - 2.5 * 3x + 2.5 * 0.6y

Now, let's simplify each term:

= 0.6y + 1.2x - 7.5x + 1.5y

Next, let's combine like terms:

= (0.6y + 1.5y) + (1.2x - 7.5x) = 2.1y - 6.3x

Therefore, the simplified expression is 2.1y - 6.3x.