Question

Evaluate the expression 15x + 4 for x = -1 1/2

Answer 1

-149 /4

Explanation:

x = -11/ 2

15x + 4

15 × -11/4 + 4

-165 / 4 +4

-165 / 4 + 4×4/4 ( taking lcm )

(-165 + 16 ) / 4

-149 /4