Question

Solve. \[7^{x-4} = 7 ^{4x+7}\]

Answer 1

just set the exponents equal and solve for x
x-4=4x+7

Answer 2

i get -11/3 and thats not one of the choices.

Answer 3

Subtract x on both sides
-4=3x+7
Subtract 7 on both sides
-11=3x
and divide by 3 on both sides
-11/3=x
I agree with you answer
Is it perhaps written in decimal form or as a mix fraction?

Answer 4

\[x=-\frac{3(3)+2}{3}=-(\frac{3(3)}{3}+\frac{2}{3})=-(3+\frac{2}{3})=-3\frac {2}{3}\]

Answer 5

the answers are A: x = -4, B: x=2/3, C:x=-12/5, D: x=4

Answer 6

The question is correct, right?

Answer 7

it is
\[-\frac{11}{3}\] for sure

Answer 8

yep unless the problem is wrong