INPUT ---------- OUTPUT X
2x-x/2
-10
-10
To simplify the expression 2x - x/2, we can combine like terms.
First, distribute the 2 to x: 2x - (1/2)x
Now, we have two similar terms, 2x and (1/2)x, which have the same variable, x. We can combine these by subtracting their coefficients: 2x - (1/2)x = (4/2)x - (1/2)x = (3/2)x
Therefore, the simplified expression is (3/2)x.
To evaluate the expression for a specific value of x, you can substitute that value into the expression and solve.
In this case, if we substitute x = -10, the expression becomes (3/2)(-10) = -15.
So, when x = -10, the expression 2x - x/2 equals -15.