a) 7x = -30 + 2x;
B) 16 - 18x = -25x –12;
A) –17x + 20 = 7x – 28;
6) 2x + 43 = 4x – 65;
r) 6x + 100 = 9x + 1;
e) 5x - 18 =-12x + 17.
Решите с решением
B) 16 - 18x = -25x –12;
A) –17x + 20 = 7x – 28;
6) 2x + 43 = 4x – 65;
r) 6x + 100 = 9x + 1;
e) 5x - 18 =-12x + 17.
Решите с решением
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Ответ:
1. 7x-2x=-30
5x=-30
x=-6
2. -18x+25x=-12-16
7x=-28
x=-4
3. -17x-7x=-28-20
-24x=-48
x=2
4. 2x-4x=-65-43
-2x=-108
x=54
5. 9x-6x=100-1
3x=99
x=33
6. 5x+12x=17+18
17x=35
x=35/17=1 1/17
Пошаговое объяснение: