seven more that some number equals twenty one
check your spelling.
Seven more "than" some number ....
x + 7 = 21
x = ????
x+7=21
or,x=21-7
or,x=14
To solve the equation "seven more than some number equals twenty-one," you can follow these steps:
1. Let's assume the unknown number as "x," as we don't have the exact value.
2. The phrase "seven more than some number" can be written as "x + 7" because we add seven to the unknown number.
3. According to the problem, "seven more than some number equals twenty-one," which can be represented as "x + 7 = 21."
4. To isolate "x," the unknown number, we need to get rid of the constant term. We can do this by subtracting 7 from both sides of the equation: "x + 7 - 7 = 21 - 7," which simplifies to "x = 14."
Therefore, the unknown number, "x," is equal to 14.