Answer:
Step-by-step explanation:
5 = 2/3 ( 8x - 6 )
to make it clearer, we can just interchange the position of LHS and RHS
2/3 ( 8x - 6 ) = 5
By transposing,
8x - 6 = 5 - 2/3
8x - 6 = 13/3
8x = 13/3 + 6
8x = 31 / 3
x = 31 / 3 × 1/8
<u><em>x = 31 / 24</em></u>
Hope this helps
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Answer:
n+45
Step-by-step explanation:
Just name "a number" as n or any other variable
Answer:
a=15
Step-by-step explanation:
boom
We can simplify this equation using logaritmic rules. logx-logb = log(x/b)
than our equation becomes.
log3((18x^3)/(2x)) = log3(144) or
log3(9x^2) = log3(144)
for x= -4 we get that left side is equal to right side
log3(9*(-4)^2) = log3(144)
but if you put that value of x=-4 in start you will get log3(18(-4)^3) which is log of negative value which is imposible. That is why x=-4 is extraneous solution.
As 64 is a perfect cube, the coefficient part does not present any problems. However, for the variable with an exponent, it is easier to obtain the cube root by multiplying the exponent by (1/3), since the cube root operator is equivalent to raising a number to the power of (1/3). This is shown below:
cube root (64x^12) = 4 * x^(12)(1/3) = 4 *x^4
Therefore, the answer is 4x^4.