Answer:
a.) x + 10
b.) x - 6
( i think )
Step-by-step explanation:
adeline is x years old so they can be any age really . 10 , 12 , 27 . etc .
in ten years she will be her age now ,, PLUS another ten years so it is x + 10
same for part b . except it is six years ago therefore take away . x - 6
