Контрольные задания > 41. Реши уравнение.
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41. Реши уравнение.

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Задание 41: Решение уравнений

Для решения уравнений необходимо найти значение неизвестной переменной (a, b, c или x, y), соблюдая правила алгебраических преобразований.

Блок А

Уравнение Решение
1: c = 0.2 c = 1 * 0.2 = 0.2
y : 0.6 = 6 y = 6 * 0.6 = 3.6
0.6 : x = 0.2 x = 0.6 / 0.2 = 3
3.7 - b = 0 b = 3.7 - 0 = 3.7
b : 0.3 = 0.3 b = 0.3 * 0.3 = 0.09
2 : a = 0.2 a = 2 / 0.2 = 10
x * 0.1 = 0.8 x = 0.8 / 0.1 = 8
y : 0.2 = 10 y = 10 * 0.2 = 2
0.8 * a = 1.6 a = 1.6 / 0.8 = 2
b : 0.4 = 2 b = 2 * 0.4 = 0.8
5 * y = 4 y = 4 / 5 = 0.8
c : 0.7 = 1 c = 1 * 0.7 = 0.7
2 : b = 5 b = 2 / 5 = 0.4
b * 0.5 = 4 b = 4 / 0.5 = 8
0.4 : y = 0.04 y = 0.4 / 0.04 = 10
a : 0.2 = 0.4 a = 0.4 * 0.2 = 0.08
0.9 : c = 9 c = 0.9 / 9 = 0.1
7 * x = 2.1 x = 2.1 / 7 = 0.3
b : 0.4 = 0.5 b = 0.5 * 0.4 = 0.2
0.75 * y = 0.75 y = 0.75 / 0.75 = 1
x : 0.3 = 0.6 x = 0.6 * 0.3 = 0.18
a * 10 = 5 a = 5 / 10 = 0.5
4.5 : y = 9 y = 4.5 / 9 = 0.5
6 * c = 3.6 c = 3.6 / 6 = 0.6

Блок Б

Уравнение Решение
0.6 : c = 6 c = 0.6 / 6 = 0.1
0.3 * a = 0.9 a = 0.9 / 0.3 = 3
0.4 * x = 0.1 x = 0.1 / 0.4 = 0.25
y - 5 = 1 y = 1 + 5 = 6
0.5 * c = 2 c = 2 / 0.5 = 4
2.4 : b = 3 b = 2.4 / 3 = 0.8
8 * x = 3.2 x = 3.2 / 8 = 0.4
y : 0.1 = 12 y = 12 * 0.1 = 1.2
3 : a = 5 a = 3 / 5 = 0.6
10 * b = 2 b = 2 / 10 = 0.2
3 : c = 0.3 c = 3 / 0.3 = 10
x * 0.2 = 0.8 x = 0.8 / 0.2 = 4
a : 0.9 = 0.3 a = 0.3 * 0.9 = 0.27
1.4 * b = 0.7 b = 0.7 / 1.4 = 0.5
c : 4 = 0.25 c = 0.25 * 4 = 1
6 * y = 1.2 y = 1.2 / 6 = 0.2
1 : x = 0.5 x = 1 / 0.5 = 2
a : 2 = 0.15 a = 0.15 * 2 = 0.3
0.8 * y = 8 y = 8 / 0.8 = 10
c : 8.4 = 0 c = 0 * 8.4 = 0
b : 0.3 = 0.2 b = 0.2 * 0.3 = 0.06
a * 0.01 = 0.6 a = 0.6 / 0.01 = 60
0.8 : y = 0.08 y = 0.8 / 0.08 = 10
x : 0.3 = 10 x = 10 * 0.3 = 3
0.6 * c = 1.8 c = 1.8 / 0.6 = 3
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