Question

2x+5=x-4 comprobación​

Answer 1

TEMA: ECUACIONES

$\mathbb{RESOLVEMOS!!}\\\\\Large\boxed{\mathbf{2x+5=x-4}}\\\\\mathbf{2x-x=-4-5}\\\\\boxed{\mathbf{x=-9}}$

$\mathbb{COMPROBACI\'ON!!}\\\\\mathbf{2x+5=x-4}\\\\\mathbf{2(-9)+5=-9-4}\\\\\mathbf{-18+5=-13}\\\\\Large\boxed{\mathbf{-13=-13~\checkmark}}$

ᗩTTE: ᗰIᖇOKᑌ[̲̅2][̲̅4]