Step-by-step explanation:
First you need to get x on one side by subtracting it from either side
Second step the side you subtracted the x to you need to get rid of the number like the number 5
Third step you need to separate the number and x since they are being multiplied to be put together you need to do the opposite and divide on both sides
Distribute the first set of parenthesis
<span><span>15<span>r<span><span>2</span><span></span></span></span>−20r+6r−8</span><span>
Combine like terms
</span><span><span>15<span>r<span><span>2</span><span></span></span></span>+(−20r+6r)−8</span><span>
Simplify your answer
</span><span>15<span>r<span><span>2</span><span></span></span></span>−14r−8
*Answer is </span>15r^2−14r−8*<span><span>
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Answer:
-243
Step-by-step explanation:
-(3)^5
-3 x -3 x -3 x - 3 x - 3
=>-243
Answer:
x = 5/4
Step-by-step explanation:
32^(x-1) = 16^(x/4)
(2^5)^(x-1) = (2^4)^(x/4) . . . . . express as powers of 2
2^(5x -5) = 2^x . . . . . . simplify
5x -5 = x . . . . . . equate exponents
4x = 5 . . . . . . . . add 5-x
x = 5/4
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Applicable rules of exponents are ...
(a^b)^c = a^(bc)
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Since this solution does not match any offered answer choice, we suggest you ask your teacher to show you how to work this problem.
The number 108 as a fraction can be written 108/1.