a) 5.3x + 1.8 = 134.35.3x = 134.3 - 1.85.3x = 132.5x = 132.5 / 5.3x = 25
б) (x - 0.02) * 0.34 = 0.136x - 0.02 = 0.136 / 0.34x - 0.02 = 0.4x = 0.4 + 0.02x = 0.42
в) 3.7 - 4(0.3x - 2) = 0.33.7 - 1.2x + 8 = 0.3-1.2x + 11.7 = 0.3-1.2x = -11.4x = -11.4 / -1.2x = 9.5
Ответ: а) x = 25, б) x = 0.42, в) x = 9.5
a) 5.3x + 1.8 = 134.3
5.3x = 134.3 - 1.8
5.3x = 132.5
x = 132.5 / 5.3
x = 25
б) (x - 0.02) * 0.34 = 0.136
x - 0.02 = 0.136 / 0.34
x - 0.02 = 0.4
x = 0.4 + 0.02
x = 0.42
в) 3.7 - 4(0.3x - 2) = 0.3
3.7 - 1.2x + 8 = 0.3
-1.2x + 11.7 = 0.3
-1.2x = -11.4
x = -11.4 / -1.2
x = 9.5
Ответ: а) x = 25, б) x = 0.42, в) x = 9.5