Let x be the unknown number. the expression is: x + 10.
x = 14
10
...so the number is 10 less than 16. Can you work it out now...?
It is: 10+(-1) = 9
3x+30let x = "a number"(x+10) = "a number increased by 10"3(x+10) = "3 times a number increased by 10"Expand: 3x+30
To increase a number by a certain amount means to add that amount to the original number. In this case, to find 90 increased by 10, you would add 10 to 90. Therefore, 90 increased by 10 is equal to 100.
Let x be the unknown number. the expression is: x + 10.
18
x = 14
10
...so the number is 10 less than 16. Can you work it out now...?
"Still" implies that the original number is a square number. In that case, the answer is as follows: There is no number such that it is a perfect sqiuare and that the number increased (or decreased) by 10 is also a perfect square. And if you do not limit it to perfect square then every non-negative number is a square with the number that is 10 more also being a square.
It is: 10+(-1) = 9
01-x
15. 5 - -10 = 5 + 10 = 15 → 15 + -10 = 15 - 10 = 5
If the number is x then: 4x+10 = -2 and so the value of x is -3