Question

0,9×(2x-5)=0,4×(5x-8)+1,7

Answer 1

x=-15

Пошаговое объяснение:

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Answer 2

To solve the equation 0.9(2x - 5) = 0.4(5x - 8) + 1.7, you can follow these steps:

1. Distribute the constants on both sides of the equation:

0.9 * 2x - 0.9 * 5 = 0.4 * 5x - 0.4 * 8 + 1.7

2. Simplify the equation by performing the multiplications:

1.8x - 4.5 = 2x - 3.2 + 1.7

3. Now, move all the terms containing x to one side of the equation and the constants to the other side. To do this, subtract 2x from both sides and add 4.5 and 3.2 to both sides:

1.8x - 2x = 1.7 + 4.5 - 3.2

4. Simplify further:

-0.2x = 3

5. Finally, solve for x by dividing both sides by -0.2:

x = 3 / (-0.2)

x = -15

So, the solution to the equation is x = -15.