x + 1.5x = 7.5 방정식 을 풀다

x + 1.5x = 7.5 방정식 을 풀다

x + 1.5x = 7.5
2.5x = 7.5
x = 7.5 / 2.5
x = 3

5x + 2 * 8 = 20 (x + 14) / 5 = 8.6 해 방정식

5x + 2 * 8 = 20
5x + 16 = 20
5x = 20 - 16
5x = 4
x = 4 / 5
x = 0.8
(x + 14) / 5 = 8.6
x + 14 = 5 × 8.6
x + 14 = 43
x = 43 - 14
x = 29

5x + 2 * 8 = 20 방정식 을 풀다

5x + 2 * 8 = 20
5x + 16 = 20
5x = 20 - 16
5x = 4
x = 4 / 5

방정식 을 풀다. 0.9 * (9 - X) = 2.7 0.6x + 20 = 26 8 / (3X + 1) = 0.2 5X - 2 * 0.3 = 4.4

0.9 * (9 - X) = 2.7
9 - X = 3
X = 6
0.6X + 20 = 26
3X + 10 = 130
3X = 120
X = 40
8 / (3X + 1) = 0.2
0.2 (3X + 1) = 8
3X + 1 = 40
3X = 39
X = 13
5X - 2 * 0.3 = 4.4
5X - 0.6 = 4.4
5X = 5
X = 1