23 2/5+х=4 5/6+21 1/6 х+19 3/7=5 7/12+ 16 5/12 х+6 - вопрос №65910062325456211619375712165126141723523438 от noname298 30.06.2021 02:00

Question

Математика: 23 2/5+х=4 5/6+21 1/6 х+19 3/7=5 7/12+ 16 5/12 х+6 1/4=17 2/3-5 2/3 4 3/8+х=21 2/5-12 2/5 решите уравнения

noname298 · Answer

23 2/5+х=4 5/6+21 1/6х= (29/6+127/6)-117/5х=78/3-117/5х=390/15-351/15х=39/15=13/5=2 3/5х+19 3/7=5 7/12+ 16 5/12х= (67/12+197/12)-136/7х= 264/12-136/7х= 22-136/7х= 154/7-136/7х=18/7х+6 1/4=17 2/3-5 2/3х= 12-25/4х=48/4-25/4х=23/4=5 3/44 3/8+х=21 2/5-12 2/5х= 9- 35/8х= 72/8-35/8х= 37/8= 4 5/8...