Resposta :
[tex]\large\boxed{\begin{array}{l} ( + 3) - ( + 3) = 9 \\ \\ 3 - 3 = 9 \\ \\ 0 = 9 \\ \\ \rm{A\, afirmac_{\!\!,}\tilde{a}o\,\acute{e}\,falsa}\end{array}}[/tex]
[tex]\large\boxed{\begin{array}{l} ( + 3) - ( + 3) = 9 \\ \\ 3 - 3 = 9 \\ \\ 0 = 9 \\ \\ \rm{A\, afirmac_{\!\!,}\tilde{a}o\,\acute{e}\,falsa}\end{array}}[/tex]