Question

qual é a resposta 10-(x+2)=9+(x-5)

Answer 1

$10-(x+2)=9+(x-5)\\10-x-2=9+x-5\\8-x=4+x\\-x-x=4-8\\-2x=-4~(-1)\\2x=4\\x= \frac{4}{2} \\x=2$