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Linear Equations in one variable — Maths STD 6 — Question

Maharashtra BoardEnglish MediumSTD 6MathsLinear Equations in one variable3 Marks
Question
Solve: 3(x + 2) - 2(x - 1) = 7​​​​
✓

Answer

3(x + 2) - 2(x - 1) = 7.
Or, 3 × x + 3 × 2 - 2 × x - 2 × (-1) = 7 [On expanding the brackets]
⇒ 3x + 6 - 2x + 2 = 7
⇒ x + 8 = 7
⇒ x + 8 - 8 = 7 - 8 [Subtracting 8 from both the sides]
⇒ x = −1

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