Fill in the missing work and justification for step 5 when solving 4(x + 1) = 8.
step work justification
1 4(x + 1) = 8 given
2 4x + 4 = 8 distributive property
3 4x + 4 − 4 = 8 − 4 subtraction property of equality
4 4x = 4 simplify
5
6 x = 1 simplify
a.) 4x − 4 = 4 − 4; subtraction property of equality
b.) 4x + 4 = 4 + 4; addition property of equality
c.) 4x/4 = 4/4; division property of equality
d.) 4x(4) = 4(4); multiplication property of equality

c.

step-by-step explanation:

we are dividing both sides of 4x = 4 by 4, so it is the division property of equality.

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:

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step-by-step explanation: