10(0,1х+1)-(2х+1)=15

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вопрос

Let's simplify the equation step by step:

10(1 + 1)x + 10(1) - 2x - 1 = 15
10(2)x + 10 - 2x - 1 = 15
20x + 10 - 2x - 1 = 15
18x + 9 = 15

Now, isolate x by subtracting 9 from both sides:

18x + 9 - 9 = 15 - 9
18x = 6

Finally, divide by 18 to solve for x:

x = 6/18
x = 1/3

Therefore, the solution to the equation 10(0,1x+1) - (2x+1) = 15 is x = 1/3.