What is the value of x in the equation 3(4x + 6) = 21?

For this case we must find the value of the variable "x" of the following equation:

We apply distributive property to the terms within parentheses:

We subtract 18 from both sides of the equation:

We divide between 12 on both sides of the equation:

y = 0.77(x)

step-by-step explanation:

the jacket retains this value after 23% cut or retains 77% of original value. plug original 87 jacket price for x and the remaining value should be y.

d

step-by-step explanation: