5
It depends on the value of x. The x is a variable. To evaluate an expression, you need to have a value (number) to replace the x.
If you mean 2x = 28 then the value of x is 14
If you mean: 4 = 2x then the value of x = 2
If you mean: 2x-0.04 =1.24 then the value of x works out as 0.64
5
It depends on the value of x. The x is a variable. To evaluate an expression, you need to have a value (number) to replace the x.
If you mean 2x = 28 then the value of x is 14
If you mean: 4 = 2x then the value of x = 2
Do you mean "what is the value of x when 3x - 2x = 15?" in that case, the value of x is 15
If you mean: 2x-0.04 =1.24 then the value of x works out as 0.64
If you mean: -2x = -4 then the value of x is 2
2x - 4 = 12Add 4 to each side:2x = 16Divide each side by 2:x = 8
If you mean the value of 15-2x when x is 2 then it is: 15-4 = 11
It is 2x + 5. The value of this expression will depend on the value of x: each different value of x will give a different value for the expression.
2x-57 degrees = -55
If you mean: x-3 = 2x-8 then the value of x works out as 5