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Byju's Answer
Standard VII
Mathematics
Equation
If 4 + z -...
Question
If
4
+
z
−
(
3
+
2
z
)
6
=
−
z
−
3
(
5
−
2
)
7
, then the value of
z
will be
A
−
61
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B
−
61
27
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C
61
27
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D
61
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Solution
The correct option is
D
61
Begin by combining like terms on both sides of the equation.
4
+
z
−
(
3
+
2
z
)
6
=
−
z
−
3
(
5
−
2
)
7
⇒
1
−
z
6
=
−
z
−
9
7
⇒
7
−
7
z
=
−
6
z
−
54
⇒
−
z
=
−
61
⇒
z
=
61
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0
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