1) 7x - (3 + 2x) = x + 9;
2) 13 - (2x - 5) = x - 3;
3) 3x – (10 - 9x) = 223;
4) 26 - (17 – 2x) = 5x.

Question

Математика: 1) 7x - (3 + 2x) = x + 9; 2) 13 - (2x - 5) = x - 3; 3) 3x – (10 - 9x) = 223; 4) 26 - (17 – 2x) = 5x.​

Вано153 · Answer

Пошаговое объяснение:1) 7x - (3 + 2x) = x + 9; 7x - 3 - 2x = x + 95x - 3 = x + 95x - x = 9 + 34x = 12x = 12 : 4x = 32) 13 - (2x - 5) = x - 3; 13 - 2x + 5 = x - 318 - 2x = x - 3x + 2x = 18 + 33x = 21x = 21 : 3x = 73) 3x – (10 - 9x) = 223; 3x - 10 + 9x = 22312x - 10 = 22312x = 223 + 1012x = 233x = 233 : 12x = 19 5/124) 26 - (17 – 2x) = 5x.​26 - 17 + 2x = 5x9 + 2x = 5x5x - 2x = 93x = 9x = 9 : 3x = 3...

1) 7x - (3 + 2x) = x + 9; 2) 13 - (2x - 5) = x - 3; 3) 3x – (10 - 9x) = 223; 4) 26 - (17 – 2x) = 5x.​

Популярные вопросы

1) 7x - (3 + 2x) = x + 9;
2) 13 - (2x - 5) = x - 3;
3) 3x – (10 - 9x) = 223;
4) 26 - (17 – 2x) = 5x.