Question

Ayuden me plis

Resuelve transponiendo elementos.

$3x = 12 \\ x + 4 = 3 \\ 4 = \frac{x}{2} \\ 18 = 3x \\ 4 = x + 2$
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Answer 1

Respuesta:

3x=12 -> x=12/3 -> x=4

x+4=3 -> x=3-4 -> x=-1

4 = x/2 -> x=4*2 -> x=8

18=3x -> x=18/3 -> x=6

4 = x+2 -> x= 4-2 -> x=2