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Byju's Answer
Standard VI
Mathematics
Estimating Sum or Difference
If 33x + 12...
Question
If
33
x
+
12
y
=
123
and
12
x
+
33
y
=
102
, then find the value of
x
+
y
.
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Solution
Given,
33
x
+
12
y
=
123
...(i)
12
x
+
33
y
=
102
...(ii)
On adding (i) and (ii), we get
45
x
+
45
y
=
225
⇒
x
+
y
=
5
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