Question

5X + 12,8 - 3,5X +5,2 = 30

Answer 1

5X + 12,8 - 3,5X +5,2 = 30

5х - 3,5х = 30 - 12,8 - 5,2

1,5х = 12

х = 12 : 1,5

х = 8

Answer 2

Ответ:

8

Пошаговое объяснение:

5X + 12,8 - 3,5X +5,2 = 30

1.5х+18=30

1,5х=30-18

1,5х=12

х=12÷1,5

х=8

Answer 3

To solve the equation for X, you can start by simplifying and isolating the variable X on one side of the equation. Here's the step-by-step solution:

5X + 12.8 - 3.5X + 5.2 = 30

First, combine like terms on both sides of the equation:

(5X - 3.5X) + (12.8 + 5.2) = 30

Now, perform the operations within the parentheses:

1.5X + 18 = 30

Next, isolate the variable X by subtracting 18 from both sides of the equation:

1.5X + 18 - 18 = 30 - 18

1.5X = 12

Finally, divide both sides by 1.5 to solve for X:

(1.5X) / 1.5 = 12 / 1.5

X = 8

So, the solution to the equation is X = 8.