Question

Розв’яжіть рівняння:
1) (134 + x) – 583 = 426;
2) (x – 506) + 215 = 429;
3) (942 – a) – 126 = 254;
4) 475 – (x – 671) = 325;
5) 403 – (634 – a) = 366;
6) 987 – (x + 364) = 519.

Answer 1

Ответ:

Пошаговое объяснение:

1) (134 + x) – 583 = 426;

134 + x - 583 = 426

x = 426 + 583 - 134

x = 875

2) (x – 506) + 215 = 429;

x - 506 + 215 = 429

x = 429 + 506 - 215

x = 720

3) (942 – a) – 126 = 254;

942 - a - 126 = 254

a = 942 - 126 - 254

a = 562

4) 475 – (x – 671) = 325;

475 - x + 671 = 325

x = 475 + 671 - 325

x = 821

5) 403 – (634 – a) = 366;

403 - 634 + a = 366

a = 366 + 634 - 403

a = 597

6) 987 – (x + 364) = 519.

987 - x - 364 = 519

x = 987 - 364 - 519

x = 104