# Solve the Following Equations. - Mathematics

Sum

Solve the following equation.

("b" + ("b" + 1) + ("b" + 2))/4 = 21

#### Solution

("b" + ("b" + 1) + ("b" + 2))/4 = 21

Multiplying both sides by 4

⇒ 4 x ("b" + ("b" + 1) + ("b" + 2))/4 = 4 xx 21

⇒ b + (b + 1) + (b + 2) = 84

⇒ 3b + 3 = 84

Subtracting 3 from both sides

⇒ 3b + 3 - 3 = 84 - 3

⇒ 3b = 81

Dividing both sides by 3

⇒ (3"b")/3 = 81/3

⇒ b = 27

Hence, b = 27 is the solution of the equation.

Concept: Solution of Equations in One Variable
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#### APPEARS IN

Balbharati Mathematics 8th Standard Maharashtra State Board
Chapter 12 Equations in one variable
Practice Set 12.1 | Q 2.11 | Page 77