Resposta :
^= elevado
* =vezes
a) 5^x * 5^1 -5^x/5^1 =24 ->chame 5x=y
y.5-y/5 =24
25y-y/5=24
25y-y=24*5
24y=24.5 -> corta os 24
y=5
5x=y
5x=5
x=1
* =vezes
a) 5^x * 5^1 -5^x/5^1 =24 ->chame 5x=y
y.5-y/5 =24
25y-y/5=24
25y-y=24*5
24y=24.5 -> corta os 24
y=5
5x=y
5x=5
x=1