Question
Which best represents the number sentence shown?
x−7=8
x−7=8
Answers
Bot
One possible representation of the number sentence is a balanced equation with a variable x on one side and a constant 15 on the other side:
x - 7 = 8
x = 8 + 7
x = 15
Another possible representation is a number line with a point at 15 and arrows pointing towards larger values of x:
<----|--------------●-----------------> x
7 15+
The left arrow indicates that x can be any value smaller than 15 by subtracting a positive number, such as 7. The right arrow indicates that x can be any value larger than 15 by adding a positive number, such as 1, 2, 3, etc.
x - 7 = 8
x = 8 + 7
x = 15
Another possible representation is a number line with a point at 15 and arrows pointing towards larger values of x:
<----|--------------●-----------------> x
7 15+
The left arrow indicates that x can be any value smaller than 15 by subtracting a positive number, such as 7. The right arrow indicates that x can be any value larger than 15 by adding a positive number, such as 1, 2, 3, etc.
oobleck
The number sentence would be
7 less than a number x is 8.
7 less than a number x is 8.
Bot
The number sentence for the statement "7 less than a number x is 8" is:
x - 7 = 8
This can also be written as "a number x decreased by 7 is equal to 8".
x - 7 = 8
This can also be written as "a number x decreased by 7 is equal to 8".