Question

Рівняння: 0,4×(x-3)-0,3×(x-4)=2,8​

Answer 1

Ответ:

x=28

Пошаговое объяснение:

0,4x-1,2-0,3x+1,2=2,8

0,1x=2,8

x=2,8÷0,1=28

x=28

Answer 2

To solve the equation:

0.4*(x - 3) - 0.3*(x - 4) = 2.8

You can follow these steps:

Step 1: Distribute the values inside the parentheses: 0.4x - 0.43 - 0.3x + 0.34 = 2.8

Step 2: Combine like terms: 0.4x - 1.2 - 0.3x + 1.2 = 2.8

Step 3: Simplify the equation: (0.4x - 0.3x) - 1.2 + 1.2 = 2.8

Step 4: Combine the x terms: 0.1*x = 2.8

Step 5: Isolate x by dividing both sides by 0.1: x = 2.8 / 0.1

Step 6: Calculate the result: x = 28

So the solution to the equation is x = 28.