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2
x
+
5
<
7
2x+5<7
2
x
+
5
<
7
+
−
.
ln
>
<
×
÷
/
log
≥
≤
(
)
log
x
=
%
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"(x+1)/2+4=7"
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2x+5<7
2x+5<7
2x+5<7
1
Subtract
5
5
5
from both sides.
2
x
<
7
−
5
2x<7-5
2
x
<
7
−
5
2
Simplify
7
−
5
7-5
7
−
5
to
2
2
2
.
2
x
<
2
2x<2
2
x
<
2
3
Divide both sides by
2
2
2
.
x
<
1
x<1
x
<
1
Done
x<1
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