Question

8a-9a^2=86-36a-9a^2 сакротить пример ​

Answer 1

Ответ:

44а-86=0

Объяснение:

9а2 сокращаются

8а+36а=86

44а-86=0

Answer 2

To simplify the given expression, we need to combine like terms. Let's start by moving all the terms with "a" to one side of the equation and the constant terms to the other side.

Given expression: 8a - 9a^2 = 86 - 36a - 9a^2

Step 1: Move all "a" terms to the left side by adding 36a to both sides of the equation:

8a - 9a^2 + 36a = 86 - 9a^2

Step 2: Combine the "a" terms on the left side:

44a - 9a^2 = 86 - 9a^2

Step 3: Now, move all the "a^2" terms to one side by subtracting 9a^2 from both sides of the equation:

44a - 9a^2 - 9a^2 = 86 - 9a^2 - 9a^2

Step 4: Combine the "a^2" terms on the right side:

44a - 18a^2 = 86 - 18a^2

Step 5: Move the constant terms to one side by subtracting 86 from both sides of the equation:

44a - 18a^2 - 86 = 86 - 18a^2 - 86

Step 6: Combine the constant terms on the left side:

44a - 18a^2 - 86 = -18a^2

Step 7: Finally, move all the "a^2" terms to the left side by adding 18a^2 to both sides of the equation:

44a - 18a^2 + 18a^2 - 86 = -18a^2 + 18a^2

Step 8: Combine the "a^2" terms on the right side:

44a - 86 = 0

Step 9: Move the constant term to the right side by adding 86 to both sides of the equation:

44a - 86 + 86 = 0 + 86

Step 10: Simplify the equation:

44a = 86

Step 11: Solve for "a" by dividing both sides by 44:

a = 86 / 44

a = 2

So, the solution to the given equation is a = 2.