172,2х-128,63х=78,426

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вопрос

To solve this equation, we first need to combine like terms on the left side:

172.2x - 128.63x = 78.426

Now, subtract 128.63x from 172.2x:

43.57x = 78.426

Finally, divide both sides by 43.57 to solve for x:

x = 78.426 / 43.57
x = 1.8

Therefore, the solution to the equation is x = 1.8.