the sum of 7 times a number and 4 is equal to 5

Question

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Answer 1

Use x as the variable for the number.

The sum of 7 times a number and 4 is equal to 5 translates mathematically to 7*x + 4 = 5.

Next, subtract 4 from both sides to get 7*x = 1. Divide both sides by 7 to isolate the x and get x = 1/7.

Now check:

If our final number is 1/7, plug it back into our original statement to see if it holds true. 1/7 * 7 is 1 and the sum of 1 and 4 (or 1 + 4) is 5.

Thus, the answer is 1/7.