To solve this, we need to distribute the (-1/2) to each term in the equation:
(-1/2)(9х) - (-1/2)(3.6) = -7х + 2 1/2
-9х/2 + 3.6/2 = -7х + 2 1/2
-4.5х + 1.8 = -7х + 2 1/2
Now, we need to isolate the variable х. Let's move all terms involving х to the left side and constants to the right side:
-4.5х + 7х = 2 1/2 - 1.8
2.5х = 0.7
Now, we can solve for х by dividing both sides by 2.5:
х = 0.7 / 2.5
х = 0.28
Therefore, the solution to the equation (9х-3.6)*(-1/2) = -7х + 2 1/2 is х = 0.28.
To solve this, we need to distribute the (-1/2) to each term in the equation:
(-1/2)(9х) - (-1/2)(3.6) = -7х + 2 1/2
-9х/2 + 3.6/2 = -7х + 2 1/2
-4.5х + 1.8 = -7х + 2 1/2
Now, we need to isolate the variable х. Let's move all terms involving х to the left side and constants to the right side:
-4.5х + 7х = 2 1/2 - 1.8
2.5х = 0.7
Now, we can solve for х by dividing both sides by 2.5:
х = 0.7 / 2.5
х = 0.28
Therefore, the solution to the equation (9х-3.6)*(-1/2) = -7х + 2 1/2 is х = 0.28.