Question

ecuacion 21-6x=27-8x con comprobacion xfavor

Answer 1

$21-6x=27-8x\\ \\ 8x-6x=27-21\\ \\ 2x = 6\\ x=\frac{6}{2\\} \\ x=3\\ \\ comprobacion 21-6(3) =27-8(3)\\ \\ 21-18 =27-24\\ \\ 3=3$