Answer:
[-8c]⁻¹ = x
Step-by-step explanation:
-8xc = 1
____ ___
-8c -8c

This, according to the Negative Exponential Rule [Reverse], is how you write this as a rational exponent. You bring the denominator to the numerator while ALTERING THE INTEGER SYMBOL FROM POSITIVE TO NEGATIVE:
b⁻ⁿ = 1\bⁿ
I am joyous to assist you anytime.
Answer: y=-8/5x-4
Step-by-step explanation:
8x+5y=-20
-8x -8x
5y=-8x-20
/5 /5
y=-8/5x-4
Step-by-step explanation:
×/21 x ×/21 = 7× x/21
x= 1/3
Yes, your answer is right.