Question

Nslate the sentence into an equation.

Twice the difference of a number and 3 is equal to 7.
e the variable c for the unknown number.
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Answer 1

The equation is 2(c - 3) = 7 and the value of c is 6.5.

Step-by-step explanation:

The equation for the sentence 'Twice the difference of a number and 3 is equal to 7' can be written as: 2(c - 3) = 7.

Here, c represents the unknown number. To solve this equation, you would first distribute the 2 to the terms inside the parentheses: 2c - 6 = 7. Then, you would isolate the variable c by adding 6 to both sides of the equation: 2c = 13. Finally, you can solve for c by dividing both sides by 2: c = 13/2 or c = 6.5.

Therefore, the equation is 2(c - 3) = 7 and the value of c is 6.5.

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