Question

-(13,3b-4,2a)+5,2b-1,5a)-(7,2a+5,1b)

Answer 1

Раскроем скобки и приведём подобные слагаемые:

= - 13,3b + 4,2a + 5,2b - 1,5a - 7,2a - 5,1b =

= (4,2a - 1,5a - 7,2a) - (13,3b - 5,2b + 5,1b) =

= - 4,5a - 13,2b.

Answer 2

Let's simplify the given expression step-by-step:

-(13.3b - 4.2a) + 5.2b - 1.5a - (7.2a + 5.1b)

Step 1: Distribute the negative sign inside the first parentheses: -13.3b + 4.2a + 5.2b - 1.5a - (7.2a + 5.1b)

Step 2: Combine like terms (terms with the same variable): (-13.3b + 5.2b) + (4.2a - 1.5a) - (7.2a + 5.1b)

Step 3: Simplify the terms: (-8.1b) + (2.7a) - (7.2a + 5.1b)

Step 4: Distribute the negative sign inside the second parentheses: -8.1b + 2.7a - 7.2a - 5.1b

Step 5: Combine like terms again: (-8.1b - 5.1b) + (2.7a - 7.2a)

Step 6: Simplify further: -13.2b - 4.5a

So, the simplified expression is: -13.2b - 4.5a