Respuesta :

The simplified form of the expression [tex]3-\frac{y}{2}[/tex]

Given the expression

2/5y - 4 + 7 - 9/10y

Collect the like terms;

[tex]\frac{2}{5} y - 4 + 7 - \frac{9}{10} y\\\frac{2}{5} y -\frac{9}{10} y-4+7\\\frac{2(2y)-9y}{10} +3\\\frac{4y-9y}{10}+3\\\frac{-5y}{10} +3\\\frac{-y}{2} +3[/tex]

Hence the simplified form of the expression [tex]3-\frac{y}{2}[/tex]

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