Question

Tenho que achar um valor para X

$\frac{x-1}{2} = \frac{x+1}{4}$

Answer 1

$\dfrac{x-1}{2} = \dfrac{x+1}{4}$

$\mathsf{4(x-1)=2(x+1)}\\\mathsf{4x-4=2x+2}\\\mathsf{4x-2x=4+2}\\\mathsf{2x=6}$

$\mathsf{x=\dfrac{6}{2}}$

$\boxed{\boxed{\mathsf{x=3}}}$

Answer 2

Resposta:

X = 3

Explicação passo-a-passo:

$\frac{x-1}{2} = \frac{x+1}{4}$

$x - 1 = \frac{x+1}{2}$

$x = \frac{x+1}{2} + 1$

$x = \frac{x+1}{2} + \frac{2}{2}$

$x = \frac{x+1+2}{2}$

$x = \frac{x+3}{2}$

$2x = x+3$

$x = 3$