Question

решите уравнение х+6.74=9 5.4-х=3,827 х-5,257=19,743

Answer 1

x + 6,74 = 9
x = 9 - 6,74
x = 2,26
__________
2,26 + 6,74 = 9
9 = 9

5,4 - x = 3,827
x = 5,4 - 3,827
x = 1,573
____________
5,4 - 1,573 = 3,827
3,827 = 3,827

x - 5,257 = 19,743
x = 19,743 + 5,257
x = 25
_______________
25 - 5,257 = 19,743
19,743 = 19,743