Question

750-(а*80+240):9=590

Answer 1

750-(а*80+240):9=590

(а*80+240):9=750-590

а*80+240=160*9

а*80+240=1440

а*80=1440-240

а*80=1200

а=1200/80

а=15

 

Answer 2

To solve for the variable "a" in the equation:

750 - (a * 80 + 240) / 9 = 590

You can follow these steps:

1. First, simplify the expression inside the parentheses:

   (a * 80 + 240)

2. Then, subtract this simplified expression from 750:

   750 - (a * 80 + 240)

3. Divide the result by 9:

   (750 - (a * 80 + 240)) / 9

4. Set the result equal to 590:

   (750 - (a * 80 + 240)) / 9 = 590

Now, solve for "a":

1. First, isolate the expression on the left side of the equation:

   (750 - (a * 80 + 240)) = 590 * 9

2. Distribute the 9 on the right side:

   (750 - (a * 80 + 240)) = 5310

3. Now, simplify further by removing the parentheses:

   750 - a * 80 - 240 = 5310

4. Combine like terms:

   750 - 240 = a * 80 + 5310

5. Simplify:

   510 = a * 80 + 5310

6. Subtract 5310 from both sides:

   -4800 = a * 80

7. Finally, divide both sides by 80 to solve for "a":

   a = -4800 / 80

Now, calculate "a":

a = -60

So, the value of "a" that satisfies the equation is -60.