Question

7×(2а-2)-2×(3а-3,5)=9 решите уравнение

Answer 1

14а-14-6а+7=9
8а=9-7+14
8а=16
а=2

Answer 2

To solve the equation, we need to find the value of 'a' that satisfies the equation:

7×(2a - 2) - 2×(3a - 3.5) = 9

Let's simplify the equation step by step:

Step 1: Distribute the multiplication

7×2a - 7×2 - 2×3a + 2×3.5 = 9

Step 2: Combine like terms

14a - 14 - 6a + 7 = 9

Step 3: Combine 'a' terms and constants

(14a - 6a) - (14 - 7) = 9

8a - 7 = 9

Step 4: Isolate 'a' on one side

8a = 9 + 7

8a = 16

Step 5: Solve for 'a'

a = 16 / 8

a = 2

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