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5
x
−
7
=
13
5x-7=13
5
x
−
7
=
1
3
+
−
.
ln
>
<
×
÷
/
log
≥
≤
(
)
log
x
=
%
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"(x+1)/2+4=7"
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5x-7=13
5x-7=13
5x-7=13
1
Add
7
7
7
to both sides.
5
x
=
13
+
7
5x=13+7
5
x
=
1
3
+
7
2
Simplify
13
+
7
13+7
1
3
+
7
to
20
20
2
0
.
5
x
=
20
5x=20
5
x
=
2
0
3
Divide both sides by
5
5
5
.
x
=
20
5
x=\frac{20}{5}
x
=
5
2
0
4
Simplify
20
5
\frac{20}{5}
5
2
0
to
4
4
4
.
x
=
4
x=4
x
=
4
Done
Check Answer ▼
x=4
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