Question

Resolva a equação: -2x - x+3= -6

Answer 1

Solução:

$\mathsf{-2x-x+3=-6}\\\\\mathsf{-3x+3=-6}\\\\\mathsf{-3x=-6-3}\\\\\mathsf{-3x=-9}\\\\\mathsf{x=\dfrac{-9}{-3}}\\\\\mathsf{x=\dfrac{9}{3}}\\\\\boxed{\mathsf{x=3}}\: \: \checkmark$