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Introduction to Algebra (pre-algebra): In Algebra,we will come across following terms:1) | If two values are equal, we use the "equals" sign | Equal to | = | Example: 2+2=4 |
2) | If two values are definitely not equal, we use the "not equal to" sign | Not equal | ≠ | Example : 2+2 ≠ 9 |
3) | More than | Addition | + | Example: 7 more than x = x+7 |
4) | Less than | Subtraction | - | Example : 5 less than x = x-5 |
5) | Decrease | Subtraction | - | Example : x is decreased by 2= x-2 |
6) | Increase | Addition | + | Example : x is increased by 3=x+3 |
7) | Twice of a number(a) | Two times | x | Example : 2 times a = 2a |
8) | Thrice of a number (a) | Three times | x | Example : 3 times a=3a |
9) | Double of a number (b) | Two times | x | Example : Double the number b = 2b |
10) | One half or Half of a number(b) | Division | Divide with 2 | Example : One half of b= ½ b = b/2 |
11) | One third of a number (x) | Division | Divide with 3 | Example : One third of x = ⅓ b= b/3 |
Russia-Ukraine crisis update - 3rd Mar 2022
The UN General assembly voted at an emergency session to demand an immediate halt to Moscow's attack on Ukraine and withdrawal of Russian troops.