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2x + 3(x/2) = 3535

[tex]2x + 3(\frac x2) = 3535[/tex]

[tex]2x + \frac {3x}{2} = 3535[/tex]

[tex]4x + 3x = 7070[/tex]

[tex]\frac{7x}{7} = \frac{7070}{7}[/tex]

[tex]x = 1010[/tex]

Takker