Seven × a number (n) plus eight is thirty-six. What is the number n?
The number n is 4.
If we take the equation, seven times a number (n) plus eight equals thirty-six, and solve for n, we will get the value of the number as 4.
If we substitute n with 6.3 in the equation (7n + 8 = 36), we get 44.1 + 8 = 52.1 which is not equal to 36. Hence, 6.3 is not the correct value for n.
By substituting n with 5.4 in the equation (7n + 8 = 36), we get 37.8 + 8 = 45.8 which is not equal to 36. Therefore, 5.4 is not the correct value for n.
If we substitute n with 4 in the equation (7n + 8 = 36), we get 28 + 8 = 36 which is equal to 36. Therefore, 4 is the correct value for n.
By substitifying n with 3.6 in the equation (7n + 8 = 36), we get 25.2 + 8 = 33.2 which is not equal to 36. Hence, 3.6 is not the correct value for n.
By substituting the given choices into the equation (7n + 8 = 36), only when n is equal to 4, the equation holds true. Therefore, the correct answer is 4. The other options do not satisfy the equation, making them incorrect choices.
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