x=-3 or x=5
1 :D 1x1=1 1+1=2
-4
7
Then the number is 3
2x+2
The square of 9 more than a number is equal to nine more than the square of a number. What is the number?
1 :D 1x1=1 1+1=2
(92 x 2) - (9 x 2) = 162 - 18 = 144 The number is therefore 9.
Five more than twice a number is -13 find the number
-4
-4
7
Let's call "a number" x. Then 5 more than twice x is 5 + 2x.
2n + 2 = 2(n + 1)Since you have been given that it is twice a variable with the variable only, you have 2n, and adding 2 yields 2n + 2, or 2(n + 1).
Then the number is 3
8 more than twice a number d
One number is eight more than twice another if their difference is 25. The larger number is 42