Heya
[tex]2x = \frac{1}{5}(x + 10) + 7 \\2x = \frac{1}{5}x + 2 + 7 \\2x = \frac{1}{5}x + 9 | * 5\\10x = 45 + x | - x\\9x = 45 | :9\\x = 5[/tex]
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