Question

Помогите решить пажалуйста(( если можно быстрей(( дам 100 балов -5/8 * (9с + 4 ) + 4с - 0,5 (3с - 7/9)

Answer 1

-48/5c-5/2+4с-1/2*(3с-7/9)

-48/5с-5/2+4с-3/2с+7/18

-45/8+4с-3/2с=-25/8с

5/2+7/18=19/9

-25/8с-19/9

Ответ:-25/8с-19/9

Answer 2

To solve the expression -5/8 * (9c + 4) + 4c - 0.5 * (3c - 7/9), we can follow the order of operations (PEMDAS/BODMAS) to simplify the expression step by step.

Step 1: Simplify the expression within parentheses

The expression within the first set of parentheses is 9c + 4. We can leave it as it is for now.

The expression within the second set of parentheses is 3c - 7/9. Again, we can leave it as it is for now.

Step 2: Perform multiplication and division from left to right

Next, we can perform the multiplication and division operations from left to right.

- Multiplying -5/8 * (9c + 4) gives us (-5/8) * (9c + 4). - Multiplying -0.5 * (3c - 7/9) gives us (-0.5) * (3c - 7/9).

Step 3: Distribute the multiplication

To distribute the multiplication, we multiply each term inside the parentheses by the number outside the parentheses.

- Distributing (-5/8) to (9c + 4) gives us (-5/8 * 9c) + (-5/8 * 4). - Distributing (-0.5) to (3c - 7/9) gives us (-0.5 * 3c) - (-0.5 * 7/9).

Step 4: Simplify the expressions

Now, we can simplify the expressions further.

- (-5/8 * 9c) + (-5/8 * 4) simplifies to (-45/8c) + (-20/8). - (-0.5 * 3c) - (-0.5 * 7/9) simplifies to (-1.5c) - (7/18).

Step 5: Combine like terms

Finally, we can combine like terms by adding or subtracting them.

- (-45/8c) + (-20/8) simplifies to (-45c - 20)/8. - (-1.5c) - (7/18) simplifies to (-27c - 7)/18.

Therefore, the simplified expression is (-45c - 20)/8 + (-27c - 7)/18.

Please note that the above steps assume that the variable "c" represents a number or variable that can be combined or simplified. If "c" represents a constant value, the expression cannot be simplified further without knowing the value of "c".