$7+5x$ for $x=10$ $=7+5(10)$ $=7+50$ $=57$
Work Step by Step
To evaluate an expression for a given value, substitute the given value for the variable in the expression and then solve. For this problem, substitute 10 for the 'x'. As the 'x' is right next to the number 5, it is implied that the two are multiplied together. The order of operations indicates that multiplication comes before addition, so first multiply the 5 and 10, then add 7 to the product.