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[latex]\frac{4}{5} = \frac{28}{x} \\ \\ x \neq 0\\ \\4x = 28 \cdot 5 \\ \\4x = 140 \ \ /: 4 \\ \\x=\frac{140}{4}\\ \\x= 35[/latex]
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[latex]\frac{4}{5} = \frac{28}{x} \\ \\ x \neq 0\\ \\4x = 28 \cdot 5 \\ \\4x = 140 \ \ /: 4 \\ \\x=\frac{140}{4}\\ \\x= 35[/latex]