Решите уравнения 1) 3x+5x+96=1568 2)357z-149z-1843=11.469 3)2y+7y+78=1581 4)256m-147m-1871=63.747

Решаем уравнения с одной переменной:

1) 3x + 5x + 96 = 1 568;

3x + 5x = 1 568 - 96;

8x = 1 472;

x = 1 472 / 8;

x = 184;

Проверка:

3 x 184 + 5 x 184 + 96 = 552 + 920 + 96 = 1 472 + 96 = 1 568;

2) 357z - 149z - 1 843 = 11,469;

357z - 149z = 11,469 + 1 843;

208z = 1 854,469;

z = 1 854,469 / 208;

z 8,9157;

3) 2y + 7y + 78 = 1 581;

2y + 7y = 1 581 - 78;

9y = 1 503;

y = 1 503 / 9;

y = 167;

4) 256m - 147m - 1 871 = 63,747;

256m - 147m = 63,747 + 1 871;

109m = 1 934,747;

m = 1 934,747 / 109;

m 24,5963.