Question

решить уровнение: 15 14/19+х+3 17/19=21 2/19

Answer 1

15 14/19+х+3 17/19=21 2/19

х+19 12/19=21 2/19

х=21 2/19- 19 12/19

х=1 9/19

Answer 2

15ц14/19+х+3ц17/19=21ц2/19

(15ц+3ц+((14+17)/19)+х=21ц2/19       {18ц31/19=19ц12/19}

19ц12/19+х=21ц2/19

х=21ц2/19-19ц12/19

х=1ц9/19