Answer:
N - 7 = 38
-> N = 45
Step-by-step explanation:
Ok, the difference between two numbers, A and B, is written as:
A - B
Then "The difference of a number and 7..."
is:
N - 7
Where N is the number.
And we know that:
N - 7 = 38
Then with this, we can find the value of N. The way of isolating N, is adding 7 in both sides of the equality, then we get:
N = 38 + 7 = 45
