Question

1)6,4-3(3,х+2) 2) 3,4-2(36х+7) 3)3,6-3(2,2+4) 4)3,7-3/2(4а-3)-(7а+5,2)

Answer 1

Ответ:

6.4-9х-6=0

9х=0.4

Х=0.4/9=0.0(4)

3.4-72х-14=0

72х=-10.6

Х=-10.6/72=0.147

3.6-6.6+4=3+4=7

3.7-3*2*а+9/2-7а-5.2=0

13а=3

А=3/13=0.231

Answer 2

It seems like you've provided mathematical expressions that need to be simplified. Let's go through each of them step by step:

1. $6 - 4 \cdot 3(3, x + 2)$: First, distribute the multiplication: $6 - 12(3, x + 2)$. Next, distribute the multiplication within the parentheses: $6 - 36, x - 24$. Finally, simplify the expression: $6 - 36x + 24 = -36x + 30$.

2. $3 - 4 \cdot 2(36x + 7)$: First, distribute the multiplication: $3 - 8(36x + 7)$. Next, distribute the multiplication within the parentheses: $3 - 288x - 56$. Finally, simplify the expression: $-288x - 53$.

3. $3 - 6 \cdot 3(2, 2 + 4)$: First, distribute the multiplication: $3 - 18(2, 2 + 4)$. Next, distribute the multiplication within the parentheses: $3 - 36, 2 - 72$. Finally, simplify the expression: $3 - 36, 2 - 72 = -33, -69$.

4. $3 - \frac{3}{2}(4a - 3) - (7a + 5, 2)$: First, simplify the fraction: $\frac{3}{2}(4a - 3) = 6a - \frac{9}{2}$. Next, distribute the multiplication: $3 - (6a - \frac{9}{2}) - (7a + 5, 2)$. Distribute the negative sign within the parentheses: $3 - 6a + \frac{9}{2} - 7a - 5, 2$. Combine like terms: $-13a + \frac{3}{2} - 5, 2$. Finally, simplify the decimal: $-13a - 2, 7$.

Please note that the expressions contain comma-separated decimal numbers which could potentially represent a decimal point or a separator. If you intended for these to be decimal points, the expressions should be interpreted slightly differently. If you could clarify the format, I can adjust the calculations accordingly.