write an equation and solve for the unknown number. Twice a number, Increased by 3 is 7
1. The number is 2
2. The number is 8
3. The number is 20
4. The number is 5
Let the unknown number be represented by x.
According to the given information, we can write the equation as:
2x + 3 = 7
Now, let's solve for x:
Subtracting 3 from both sides of the equation:
2x = 7 - 3
2x = 4
Dividing both sides by 2:
x = 4/2
x = 2
Therefore, the correct answer is:
1. The number is 2