Question

Mim ajuden essa tarefa é pra amanha
X-3=8

Answer 1

x-3=8
x=8+3
x=11
Espero ter ajudado

Answer 2

Resolvendo:

$\mathsf{x-3=8}\\\\\mathsf{x-\diagup\!\!\!\!3+\diagup\!\!\!\!3=8+3}\\\\\boxed{\mathsf{x=11}}\: \: \checkmark$