Question

Evaluate the variable expression for x = 4

7 - 7 * (x - 5)

Answer 1

plug in 4 where x is

so 7-7*(4-5)

simplify parenthesis first

7-7*(-1)

then multiply

7-(7*-1)

7-(-7)

so because you're subtracting a negative number, you flip the sign

7+7

14