7 + 2x = x + 10 so 2x - x = 10 - 7 x = 3
X=3
Let's call "a number" x. Then 5 more than twice x is 5 + 2x.
n = number.2n + 6=====
The algebraic expression for three more than a number is: X + 3
2x+3 where x is the unknown number
3
(92 x 2) - (9 x 2) = 162 - 18 = 144 The number is therefore 9.
the equation is 2x + 4 = x - 3 solving it yields x = -7
Five more than twice a number is -13 find the number
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
The certain number is 18.
n = number.2n + 6=====
2X+7