Question

решите уравнения: 
х*1,79=1790
700,5:х=70,05
653:х=6,53
15х+9х+4,88=65

Answer 1

х*1,79=1790
x=1790:1,79
x=1000
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700,5:х=70,05
x=700,5:70,05
x=10
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653:х=6,53
x=653:6,53
x=100
================
15х+9х+4,88=65
24x=65-4,88
24x=60,12
x=60,12:24
x=2,505
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