(2.61-4х):0.03+4.6=90; 8.36-5.36:(0.2х+0.47х)=7.56

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вопрос

To solve this equation, we'll first simplify each side separately:

(2.61 - 4x) / 0.03 + 4.6 = 9
First, we'll simplify the left side by dividing (2.61 - 4x) by 0.03
(2.61 - 4x) / 0.03 = (87 - 133.33x
Now we can rewrite the equation
(87 - 133.33x) + 4.6 = 9
82.4 - 133.33x = 9
-133.33x = 7.
x = -0.057

Next, let's simplify the right side of the equation
8.36 - 5.36 / (0.2x + 0.47x) = 7.5
3 / (0.67x) = 7.5
0.67x = 3 / 7.5
0.67x = 0.396
x = 0.5911

Therefore, the solutions to the equation are x = -0.057 and x = 0.5911.