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Equations & Systems
medium
0:00.0
Solve for
x
x
x
:
2
x
+
1
=
8
x
−
1
2^{x+1} = 8^{x-1}
2
x
+
1
=
8
x
−
1
.
A
x
=
1
x = 1
x
=
1
B
x
=
3
x = 3
x
=
3
C
x
=
2
x = 2
x
=
2
D
x
=
4
x = 4
x
=
4
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