Question

For all values of x, which expression is equivalent to 4(5x + 3) - 4x?
12x + 12
16x + 12
16x + 16
32x + 12

Answer 1

4(5x + 3) - 4x
4*5x = 20x
4 * 3 = 12
20x and 4x are like terms,so 20x - 4x=16x
12 doesn’t have anything to go with,so it just stays

16x + 12 (B is the correct answer)