a) 5.3x + 1.8 = 134.5.3x = 134.3 - 1.5.3x = 132.x = 132.5 / 5.x = 25
б) (x - 0.02) * 0.34 = 0.13x - 0.02 = 0.136 / 0.3x - 0.02 = 0.x = 0.4 + 0.0x = 0.42
в) 3.7 - 4(0.3x - 2) = 0.3.7 - 1.2x + 8 = 0.-1.2x + 11.7 = 0.-1.2x = -11.x = -11.4 / -1.x = 9.5
Ответ: а) x = 25, б) x = 0.42, в) x = 9.5
a) 5.3x + 1.8 = 134.
5.3x = 134.3 - 1.
5.3x = 132.
x = 132.5 / 5.
x = 25
б) (x - 0.02) * 0.34 = 0.13
x - 0.02 = 0.136 / 0.3
x - 0.02 = 0.
x = 0.4 + 0.0
x = 0.42
в) 3.7 - 4(0.3x - 2) = 0.
3.7 - 1.2x + 8 = 0.
-1.2x + 11.7 = 0.
-1.2x = -11.
x = -11.4 / -1.
x = 9.5
Ответ: а) x = 25, б) x = 0.42, в) x = 9.5