Question

04. Resolvendo a equação 2(x + 4) = 4x + 11, obtém:
(A)-2,4
(B) 1,2
(C) -0,5
(D) -1,5

me ajudem por favor !​

Answer 1

Resposta:

OLÁ

VAMOS A SUA PERGUNTA:⇒⇒

$\sf 2(x + 4) = 4x + 11$

$\sf 2x+8=4x+11$

$\sf 2x+8-4x=11$

$\sf -2x+8=11$

$\sf - 2x=11-8$

$\sf -2x=3$

$\sf x=\dfrac{3}{-2}$

$\boxed{\bold{\displaystyle{\clubsuit\ \spadesuit\ \maltese\ \sf \blue{x=-\frac{3}{2}=-1\frac{1}{2}=-1,5 } }}}\ \checkmark$

Explicação:

ESPERO TER AJUDADO

Answer 2

$\sf 2\cdot(X+4)=4x+11\\\\\\2x+8=4x+11\\\\\\{Subtrair\:}8{\:de\:ambos\:os\:lados}\\\\\\2x+8-8=4x+11-8\\\\\\2x=4x+3\\\\\\2x-4x=4x+3-4x\\\\\\-2x=3\\\\\\\dfrac{-2x}{-2}=\dfrac{3}{-2}\\\\\\\to \boxed{\sf x=-\frac{3}{2} \approx-1,5}$