Question

0.4(-у-3)+2.5=0.5(4-у)

Answer 1

Ответ:

0.4x-1.2+2.5=2+0.5x

0.4x-0.5x=2+1.2-2.5

-0.1x=0.7

x=-7

Answer 2

Ответ:

у=7

Объяснение:

0,4(-у-3)+2,5=0,5(4-у)

-0,4у-1,2+2,5=2-0,5у

0,4у+1,3=2-0,5у

-0,4у+0,5у=2-1,3

0,1у=0,7

у=0.7

Answer 3

To solve the equation for у, follow these steps:

Given equation: 0.4(-у - 3) + 2.5 = 0.5(4 - у)

Step 1: Distribute the constants on the left side and right side of the equation:

0.4(-у) - 0.4(3) + 2.5 = 0.5(4) - 0.5(у)

Step 2: Simplify the terms on both sides:

-0.4у - 1.2 + 2.5 = 2 - 0.5у

Step 3: Combine like terms:

-0.4у + 1.3 = 2 - 0.5у

Step 4: Add 0.5у to both sides to isolate the terms containing у on one side:

-0.4у + 0.5у + 1.3 = 2

Step 5: Combine the у terms on the left side:

0.1у + 1.3 = 2

Step 6: Subtract 1.3 from both sides:

0.1у = 0.7

Step 7: Divide both sides by 0.1 to solve for у:

у = 0.7 / 0.1 у = 7

So, the solution for the equation is у = 7.