Need help in revising exam in just a weeks time :c
What is the question? Cause you could make a chart that might be easier. I dont know what the question is but you could represent Abigail as A and Bob as x and unknown as b.
so in the chart you could have bob and Abigail’s name down than the letter underneath it have the letters ( a and x). You could also have the known age for bob as b and known age for abigail is 1.
Depending on your question would be what sign you use and stuff. Anyways it might look something like this:
a1 * b= x
i dont know the proper sign cause the full question isnt there but i am pretty sure this is what your supposed to do. is this kinda what you are asking?
A stands for Abigail and 'a' is her age in years
B stands for Bob and 'b' is his age in years
x is the unknown difference in their ages:
A is 'a'
B is 'b'
Abigail is a years old.
Bob is b years old.
Bob is older than Abigail.
Write down, in terms of a and b, an expression for how many years older bob is than Abigail.
Can we get an example?