Question

B + (2,3-B)-1,5 5x-3*(2x-7) C-(3c-(4c+2)) 5/9 * (-x* 3/5 * 6/18*y

Answer 1

Ответ:

0,8

-x+21

2с+2

(-x*y)/9

Пошаговое объяснение:

Раскрываем скобки:

В + 2,3 - В-1,5

В - сокращается

2,3-1,5=0,8

5х-6х+21

х- сокращаем

-х+21

с-(3с-4с-2)=с-(-с-2)=с+с+2= 2с+2

5/9 * (-х/5 * у)= (-х*у) /9

Answer 2

It seems like you're trying to provide mathematical expressions, but the expressions you've written are not clear. It appears there might be some formatting issues or missing symbols in your input.

Let me break down the expressions based on what you've provided and try to correct any potential errors:

1. $B + (2,3-B) - 1,5$ This expression seems to have some formatting issues. If you meant $B + (2.3 - B) - 1.5$, then it simplifies to $0.8 - B$.

2. $5x - 3 \times (2x - 7)$ This is a valid expression. You can simplify it by distributing the $3$ inside the parentheses: $5x - 6x + 21$ $-x + 21$

3. $C - (3c - (4c + 2))$ Simplifying the inner parentheses first: $C - (3c - 4c - 2)$ $C - (-c - 2)$ $C + c + 2$ $c + C + 2$

4. $\frac{5}{9} \times (-x \times \frac{3}{5} \times \frac{6}{18} \times y)$ First, simplify the fractions in the expression: $\frac{5}{9} \times (-x \times \frac{1}{3} \times \frac{1}{3} \times y)$ $-\frac{5}{27}xy$

Please ensure you provide the correct mathematical expressions if you need further assistance.