4,5х+3\4=2 19\28
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4.5x=
4.5x=1
x=
4,5х+3/4=2 19/28
4,5х=2 19/28-3/4=2 19/28-21/28=96/28
х= 96/28:4,5=16/21
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4.5x=![2\frac{12}{28}-\frac{3}{4} 2\frac{12}{28}-\frac{3}{4}](https://tex.z-dn.net/?f=2%5Cfrac%7B12%7D%7B28%7D-%5Cfrac%7B3%7D%7B4%7D)
4.5x=1![\frac{13}{14} \frac{13}{14}](https://tex.z-dn.net/?f=%5Cfrac%7B13%7D%7B14%7D)
x=![\frac{3}{7} \frac{3}{7}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B7%7D)
4,5х+3/4=2 19/28
4,5х=2 19/28-3/4=2 19/28-21/28=96/28
х= 96/28:4,5=16/21