Question

решите уравнение отношение 1.4х-3.5/ 0.5 равно отношению 2.3х-9/ -1.5

Answer 1

1.4х-3.5 .5=2.3х-9-1.5
0.5*(2.3х-9)=-1.5*(1.4х-3.5)
1.15х-4.5=-2.1х+5.25
1.15х+2.1х=5.25+4.5
3.25х=9.75
х=9.75:3.25
х=3

Answer 2

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