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7
x
+
8
=
1
7x+8=1
7
x
+
8
=
1
+
−
.
ln
>
<
×
÷
/
log
≥
≤
(
)
log
x
=
%
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7x+8=1
7x+8=1
7x+8=1
1
Subtract
8
8
8
from both sides.
7
x
=
1
−
8
7x=1-8
7
x
=
1
−
8
2
Simplify
1
−
8
1-8
1
−
8
to
−
7
-7
−
7
.
7
x
=
−
7
7x=-7
7
x
=
−
7
3
Divide both sides by
7
7
7
.
x
=
−
1
x=-1
x
=
−
1
Done
Check Answer ▼
x=-1
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