Question

When she first purchased it, Soledad's computer had 400 GB of hard drive space. After six months, there were only 313 GB available. Write and solve an equation to find the amount of hard drive space that Soledad used in the first six months.

Answer 1

400-x=313
400=313+x
400-313=x
x=87

Answer 2

Answer: Soledad used 87 GB in the first six month.

Explanation:

Since we have given that

Amount of space in hard drive of computer = 400 GB

After 6 months,

Amount of space in hard drive of computer = 313 GB

Let the amount of hard drive space she used in first six months be 'x'.

According to question, it becomes,

`400-x=313\\\\400-313=x\\\\87=x`

Hence, Soledad used 87 GB in the first six month.