Question

Докажите торжество 36-(-(9с-15))=3(3с+7)Срочно!!

Answer 1

36-(-(9c-15))=3(3c+7)
36+9c-15=9c+21
9c-9c=21-36+15
0=0

Answer 2

36 - ( - ( 9с - 15 )) = 3( 3с + 7 )
36 - ( - 9с + 15 ) = 9с + 21
36 + 9с - 15 = 9с + 21
9с + 21 = 9с + 21

Answer 3

Equation Simplification: 36 - (-(9c - 15)) = 3(3c + 7)

To simplify the equation 36 - (-(9c - 15)) = 3(3c + 7), let's break it down step by step:

1. Start by simplifying the expression inside the parentheses on the left side of the equation: -(9c - 15). - The negative sign in front of the parentheses means we need to distribute the negative sign to each term inside the parentheses. - Distributing the negative sign gives us: -9c + 15.

2. Now we can rewrite the equation with the simplified expression: 36 - (-9c + 15) = 3(3c + 7).

3. Next, simplify the double negative on the left side of the equation: -(-9c + 15). - Multiplying a negative sign by another negative sign results in a positive sign. - So, -(-9c + 15) becomes 9c - 15.

4. Rewrite the equation with the simplified expression: 36 - (9c - 15) = 3(3c + 7).

5. Now, let's simplify the expression inside the parentheses on the right side of the equation: 3(3c + 7). - Distributing the 3 to each term inside the parentheses gives us: 9c + 21.

6. Rewrite the equation with the simplified expression: 36 - (9c - 15) = 9c + 21.

7. To further simplify the equation, let's remove the parentheses by distributing the negative sign to each term inside the parentheses: 36 - 9c + 15 = 9c + 21.

8. Combine like terms on both sides of the equation: 51 - 9c = 9c + 21.

9. To isolate the variable, let's move the terms with 'c' to one side of the equation and the constant terms to the other side. - Subtract 9c from both sides: 51 - 9c - 9c = 9c - 9c + 21. - Simplifying gives us: 51 - 18c = 21.

10. Next, let's move the constant terms to the other side of the equation by subtracting 21 from both sides: 51 - 18c - 21 = 21 - 21. - Simplifying gives us: 30 - 18c = 0.

11. Finally, to solve for 'c', divide both sides of the equation by -18: (30 - 18c) / -18 = 0 / -18. - Simplifying gives us: -30/18 + c = 0. - Further simplifying gives us: -5/3 + c = 0. - To isolate 'c', subtract -5/3 from both sides: -5/3 + c - (-5/3) = 0 - (-5/3). - Simplifying gives us: c - 5/3 = 5/3.

Therefore, the simplified equation is: c - 5/3 = 5/3.

Please note that this is the simplified form of the equation based on the given expression. If you have any further questions or need additional assistance, feel free to ask!