Question

Identify the value for the variable.

What is the value of x in this simplified expression?
79. 7-3 = 7
x
X=
What is the value of y in this simplified expression?
11-4
119
=
11-3
y =

Answer 1

answer below

Explanation:

1) when multiplying you add the powers so

7^-9 x 7^-3 = 7^x

-9 + -3 = -12

2) when dividing you subtract the powers

so -4 - -8= 4

hope this helps!