Question

a)
$1 + \frac{5z - 36}{4} + \frac{2 - z}{2} = 2 + \frac{z - 12}{2}$
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Answer 1

Resposta:

z=12

Explicação passo-a-passo:

$\frac{1*4*2+(5z-36)*(2*1)+(2-z)*4*1}{1*2*4} = \frac{2*2+(z-12)*1}{2*1}\\  \\\frac{8+10z-72+8-4z}{8} =\frac{4+z-12}{2} \\\\\frac{6z-56}{8} =\frac{z-8}{2} \\\\2*(6z-56) = 8*(z-8)\\12z-112=8z-64\\12z-8z=112-64\\4z=48\\z=\frac{48}{4} \\z=12$