Question

c) -7x = 9x + 22

alguém pleaseeeee​

Answer 1

$\LARGE\tt{} - 7x = 9x + 22 \\ \LARGE\tt{} - 7x - 9x = 22 \\ \LARGE\tt{} - 16x = 22 \\ \LARGE\tt{} - 16 \div \left( - 16\right) = 22 \div \left( - 16\right) \\ \\ \LARGE\tt{}x = - \dfrac{22 \div 2}{16 \div 2} \\ \\\LARGE\tt{} \boxed{x = - \dfrac{11}{8} }$

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