a) 38 + x = 51;
6) 2x + 3 - x = 15;
B) 75 - y = 28;
r) 7 + 3y + 2y – 1 = 46; решите уравнение
6) 2x + 3 - x = 15;
B) 75 - y = 28;
r) 7 + 3y + 2y – 1 = 46; решите уравнение
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Ответ:
1)х=57-38
Х=19
2)3х=15-3
Х=4
3)-у=28-75
У=47
4)5у=46-7+1
У=8