if | 20 x - 10 | = 130 , then find the product of the values of x ?
"| 20 x - 10 | = 130 20 x - 10 = 130 or 20 x - 10 = - 130 20 x = 140 or 20 x = - 120 x = 7 or x = - 6 product = - 6 * 7 = - 42 answer is c"
subtract(subtract(subtract(130, 10), add(130, 10)), 10)