Seudónimo
Seudónimo
01-09-2015
Mathematics
contestada
7x - 14 = 3x - 5x + 13
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antonio9990
antonio9990
01-09-2015
[tex]7x-14=3x-5x+13 \\ 7x-3x+5x=13+14\\9x=27\\x=27:9\\\boxed{x=3} \\ \\ \text{Check:}\\---\\7*3-14=3*3-5*3+13\\21-14=9-15+13\\7=7 \ \to \text{true} \\ \\ \\\\\huge\text{The answer is x=3}[/tex]
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