1) -4.2x + 1.1 = -11.-4.2x = -11.5 - 1.-4.2x = -12.x = -12.6 / -4.x = 3
2) -6.5x + 2.8 = -10.-6.5x = -10.2 - 2.-6.5x = -1x = -13 / -6.x = 2
3) 6 * (5x - 35.6) = -3.30x - 213.6 = -3.30x = 21x = 210 / 3x = 7
4) 3 * (2x - 16.6) = 4.6x - 49.8 = 4.6x = 5x = 54 / x = 9
Ответ: x = 3, x = 2, x = 7, x = 9.
1) -4.2x + 1.1 = -11.
-4.2x = -11.5 - 1.
-4.2x = -12.
x = -12.6 / -4.
x = 3
2) -6.5x + 2.8 = -10.
-6.5x = -10.2 - 2.
-6.5x = -1
x = -13 / -6.
x = 2
3) 6 * (5x - 35.6) = -3.
30x - 213.6 = -3.
30x = 21
x = 210 / 3
x = 7
4) 3 * (2x - 16.6) = 4.
6x - 49.8 = 4.
6x = 5
x = 54 /
x = 9
Ответ: x = 3, x = 2, x = 7, x = 9.