21 - 5х = 6 1\5 у = 40,1х = 3 0.,7 у =0

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вопрос

To solve the equation 21 - 5x = 6, we first need to isolate the variable x by subtracting 21 from both sides:

21 - 21 - 5x = 6 - 21
-5x = -15

Next, divide by -5 to solve for x:

x = -15 / -5
x = 3

Therefore, the solution for x in the equation 21 - 5x = 6 is x = 3.

Given the equation у = 40.1x = 3 0.7 у = 0, it seems there may be a typo or formatting error in the expression. Please provide the equation in a clearer format if possible.