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3
x
−
9
=
3
3x-9=3
3
x
−
9
=
3
+
−
.
ln
>
<
×
÷
/
log
≥
≤
(
)
log
x
=
%
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3x-9=3
3x-9=3
3x-9=3
1
Add
9
9
9
to both sides.
3
x
=
3
+
9
3x=3+9
3
x
=
3
+
9
2
Simplify
3
+
9
3+9
3
+
9
to
12
12
1
2
.
3
x
=
12
3x=12
3
x
=
1
2
3
Divide both sides by
3
3
3
.
x
=
12
3
x=\frac{12}{3}
x
=
3
1
2
4
Simplify
12
3
\frac{12}{3}
3
1
2
to
4
4
4
.
x
=
4
x=4
x
=
4
Done
Check Answer ▼
x=4
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