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Simple (Linear) Equations (Including Word Problems) — MATHS STD 6 — Question

ICSE BoardEnglish MediumSTD 6MATHSSimple (Linear) Equations (Including Word Problems)4 Marks
Question
Solve the following equation: 5y – 15 = 27 -2y
✓

Answer

5y – 15 = 27 -2y
⇒ 5y + 2y - 15 = 27 - 2y + 2y (Adding 2y to both sides)
⇒ 7y - 15 = 27
⇒ 7y - 15 + 15 = 27 + 15 ...(Adding 15 to both sides)
⇒ 7y = 42
$\Rightarrow \frac{7 y}{7}=\frac{42}{7} \quad \ldots($ Dividing by 7$)$
⇒ y = 6

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