1) 4x + 5 = 174x = 173 - 4x = 16x = 168 / x = 42
Ответ: x = 42
2) 5x + 2.2x = 4.57.2x = 4.5x = 4.56 / 7.x ≈ 0.6333
Ответ: x ≈ 0.6333
1) 4x + 5 = 17
4x = 173 -
4x = 16
x = 168 /
x = 42
Ответ: x = 42
2) 5x + 2.2x = 4.5
7.2x = 4.5
x = 4.56 / 7.
x ≈ 0.6333
Ответ: x ≈ 0.6333