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Byju's Answer
Standard VII
Mathematics
Forming Equation from Solution
Solve the equ...
Question
Solve the equations:
(12) 5 (8 – y) = 3y + 13
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Solution
5 (8 – y) = 3y + 13
⇒
40 – 5y = 3y + 13
Subtracting 3y from both sides, we obtain:
40 – 5y – 3y = 3y + 13 – 3y
⇒
40 – 8y = 13
Subtracting 40 from both sides, we obtain:
40 – 8y – 40 = 13 – 40
⇒
– 8y = –27
Dividing both sides by – 8, we obtain:
-
8
y
-
8
=
-
27
-
8
⇒
y
=
27
8
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