When you have a negative number after the subtraction sign it turns in to addition. For example +7 - (-7) = 14 and (-7) - 7 = (-14)
Addition: yes. Subtraction: only if you redefine it as an addition, for example 5 - 3 = 5 + (-3) = (-3) + 5 = -3 + 5. You might simply keep each number with its sign.
Ok i can see where you would have trouble with this. When i first started Algebra, i wasn't quite sure how this worked. Here are some examples: 2-+2=0 the subtraction sign cancels the addition out. (2-2 is the same thing) 2- -2= 4 the two subtraction signs make an addition sign. (2+2 is the same thing) I hope i could help you.
Addition is the inverse operation to subtraction.
Addition and subtraction are reverse operations.
The less than sign I believe that you are talking about is the minus/subtraction sign? The addition sign, +, is the opposite of the subtraction sign :)
Because a negative negative is the same a a positive, and because of the definition of subtraction and addition.
When you have a negative number after the subtraction sign it turns in to addition. For example +7 - (-7) = 14 and (-7) - 7 = (-14)
+ : Addition x : Multiplication - : Subtraction / : Divide
subtraction * * * * * The pattern is changing the sign of the number.
You are likely to get a different answer.
Those are the "terms" of the expression.
Addition is shown with a plus sign (+), subtraction is denoted by a minus sign (-).
Addition: yes. Subtraction: only if you redefine it as an addition, for example 5 - 3 = 5 + (-3) = (-3) + 5 = -3 + 5. You might simply keep each number with its sign.
who discovered addition and subtraction.
turn the subtraction sign into an addition sign and the 3 into a negative: 1+-3=-2
Ok i can see where you would have trouble with this. When i first started Algebra, i wasn't quite sure how this worked. Here are some examples: 2-+2=0 the subtraction sign cancels the addition out. (2-2 is the same thing) 2- -2= 4 the two subtraction signs make an addition sign. (2+2 is the same thing) I hope i could help you.