If: 2x+8 = 7 then x = -1/2
To write twice the sum of a number and 600, you first express the number as a variable, such as ( x ). The sum of the number and 600 can be written as ( x + 600 ). Therefore, twice this sum is represented as ( 2(x + 600) ).
"the sum of 2" and "twice" "a number" "is" "36"2+2x=36 â–
2*(n+3)
2n + (-5)
2x+7=n
"the sum of 2" and "twice" "a number" "is" "36"2+2x=36 â–
2n + (-5)
2*(n+3)
2n + 8 = 33
2x+7=n
2(n+7)
2 + 2x = 36
2*n + 5 = 35
the sum of 18 and a number equals 24
Write the following as an algebraic expression using x as the variable: The sum of a number and -8
If the number is n, then twice the number is 2n and the sum of the two is n + 2n = 3n.
The sum of a single number is itself. So the only number whose sum equals 2 is 2.