Sagot:
# x = (1, -2 / 3) #
Paliwanag:
Alam namin iyan
#color (asul) (| x | = (- x, x) #
Kaya maaari naming hatiin ang equation sa dalawa
#rarrcolor (orange) (20x = 4x + 16 #
#rarrcolor (violet) (20x = - (4x + 16) #
Lutasin ang parehong mga equation
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#rarrcolor (orange) (20x-4x = 16 #
#rarrcolor (orange) (16x = 16 #
#rarrcolor (berde) (x = 16/16 = 1 #
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#rarrcolor (violet) (20x = -4x-16) #
#rarrcolor (violet) (20x + 4x = -16 #
#rarrcolor (violet) (24x = -16 #
#rarrcolor (berde) (x = -16 / 24 = -2 / 3 #
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