8+4*2+7/3=20
Where do I place parentheses to make this equation correct?
before the eight after the two and before the seven and after the twenty
This question was answered correctly for you earlier.
Before the 2 and after the 3.
To place parentheses in order to make this equation correct, you need to follow the order of operations (also known as PEMDAS or BODMAS). This rule determines the sequence in which different mathematical operations should be performed in an equation.
In the given equation: 8 + 4 * 2 + 7 / 3 = 20
1. Start with any division or multiplication operations:
8 + (4 * 2) + 7 / 3 = 20
Here, (4 * 2) equals 8, so the expression becomes:
8 + 8 + 7 / 3 = 20
2. Next, perform the remaining addition and subtraction operations from left to right:
8 + 8 + (7 / 3) = 20
Now, (7 / 3) is a division operation. After calculating it, we get:
8 + 8 + 2.333... = 20
3. Finally, perform the remaining addition operations:
8 + 8 + 2.333... = 18.333...
Therefore, in order to make the equation correct, you need to place parentheses around the addition section, like this:
8 + (4 * 2 + 7) / 3 = 20
Now, let's solve it using the order of operations:
1. Start with the multiplication operation:
(4 * 2) = 8
2. Next, perform the addition operation within the parentheses:
8 + 7 = 15
3. Then, proceed with the division operation:
15 / 3 = 5
4. Finally, perform the remaining addition operation:
8 + 5 = 13
So, the correct equation becomes:
8 + (4 * 2 + 7) / 3 = 13