Any of them. To get 50 to 30 you could... subtract 20 add -20 divide by 5/3 multiply by 3/5
You need to subtract 20 from 26
70
3n+20=170 subtract 20 3n=150 divide by 3 n=50
It means that you really increase the number that you were subtracting from, because you are adding to it the opposite of the number that is subtracted. Think about your bank account. Let's say you withdrew $50 more than the amount of money that you had in your checking account. The bank statement will show a negative account of yours as - 50. If you deposit $30, then you can add 30 (which is the opposite of -30) to -50 to calculate your balance, or you can subtract -30 from -50, because from those "negative" money you took of some of them. So that, -50 - (-30) = -50 + 30 = -20 (your balance). Now, deposit $20 dollars more to subtract that -20 from your statement.
Any of them. To get 50 to 30 you could... subtract 20 add -20 divide by 5/3 multiply by 3/5
To solve this one, subtract 50 from 180 and you'll have your answer.
You need to subtract 20 from 26
5 tens which is 50
70
4
3n+20=170 subtract 20 3n=150 divide by 3 n=50
49
82 subtract by 20 = 62
64
It means that you really increase the number that you were subtracting from, because you are adding to it the opposite of the number that is subtracted. Think about your bank account. Let's say you withdrew $50 more than the amount of money that you had in your checking account. The bank statement will show a negative account of yours as - 50. If you deposit $30, then you can add 30 (which is the opposite of -30) to -50 to calculate your balance, or you can subtract -30 from -50, because from those "negative" money you took of some of them. So that, -50 - (-30) = -50 + 30 = -20 (your balance). Now, deposit $20 dollars more to subtract that -20 from your statement.
The difference between 20 degrees and -30 degrees is 50 degrees. This is because you subtract the smaller value (-30) from the larger value (20) to find the difference. Mathematically, 20 - (-30) = 50.