Write an algebraic equation for each of these problems and then solve the equation a. the sum of 6 times a number and 2 is 56​

The number is 9

Step-by-step explanation:

a. Let the number be x

Sum of 6 times a number and 2 = 6x+2

Given,

6x+2 = 56

Subtract 2 ,

6x = 56-2 = 54

Divide by 6,

x = 54/6 = 9

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation:

3.how is solving radical equations different than solving linear equations?

step-by-step explanation: