Question

28a-(43+8a)×7=14(16a-9)+56​

Answer 1

Ответ:

Объяснение:

$\displaystyle 28a-(43+8a)*7=14(16a-9)+56\\28a-43*7-56a=14*16a-14*9+56\\28a-56a-14*16a=43*7-14*9+56\\-252a=231\\a=-\frac{231}{252}\\a=-\frac{11}{12}$

Answer 2

To solve the equation 28a - (43 + 8a) × 7 = 14(16a - 9) + 56, you'll need to simplify and isolate the variable "a." Here are the steps to solve it:

1. Start by simplifying both sides of the equation:

   28a - (43 + 8a) × 7 = 14(16a - 9) + 56

   Simplify the expressions inside the parentheses:

   28a - (43 + 8a × 7) = 14(16a - 9) + 56

   Now, distribute the 8a and 14 on their respective sides:

   28a - (43 + 56a) = 224a - 126 + 56

2. Continue simplifying:

   28a - 43 - 56a = 224a - 126 + 56

3. Combine like terms on each side:

   (28a - 56a) - 43 = 224a - 70

   -28a - 43 = 224a - 70

4. Move all the terms involving "a" to one side of the equation and constants to the other side. To do this, add 28a to both sides and add 70 to both sides:

   -28a + 28a - 43 + 70 = 224a - 28a - 70 + 70

   -43 + 70 = 196a

5. Simplify:

   27 = 196a

6. Finally, solve for "a" by dividing both sides by 196:

   a = 27 / 196

So, the solution to the equation is:

a ≈ 0.1377551