Question

Resolva a equação a seguir:
Resposta: x=

Answer 1

$\displaystyle\frac{x+8}{5}+\frac{x+2}{2}=4\\\\\displaystyle\frac{2(x+8)+5(x+2)}{10}=4\\\\\displaystyle\frac{2x+16+5x+10}{10}=4\\\\\displaystyle\frac{7x+26}{10}=4\\\\7x+26=4.10\\\\7x+26=40\\\\7x=40-26\\\\7x=14\\\\x=\displaystyle\frac{14}{7}\\\\x=2$