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

x+6.74=9 x=9-6.74 x=2.26 5.4-x=3.827 x=5.4-3.827 x=1.573 x-5.257=19.743 x=19.743+5.257 x=25

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