Question

0,5(4-y)-0,4(y-3)=2,5

Answer 1

$0.5(4 - y) - 0.4(y - 3) = 2.5$
$2 - 0.5y - 0.4y + 1.2 = 2.5$
$3.2 - 0.9y = 2.5$
$- 0.9y = 2.5 - 3.2$
$- 0.9y = - 0.7$
$y = \frac{7}{9}$

Answer 2

To solve the equation $0.5(4-y) - 0.4(y-3) = 2.5$, follow these steps:

Step 1: Distribute the decimals:

$2 - 0.5y - 0.4y + 1.2 = 2.5$

Step 2: Combine like terms:

$-0.9y + 3.2 = 2.5$

Step 3: Subtract 3.2 from both sides:

$-0.9y = -0.7$

Step 4: Divide both sides by -0.9:

$y \approx \frac{0.7}{0.9}$

$y \approx 0.778$

So, the solution to the equation is $y \approx 0.778$.