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Complete the following activity, and find the value of x: 5x + 3y = 9 ................ (I)2x – 3y = 12 ............... (ii) Add equation (I) and (II) 5x + 3y = 9+ 2x – 3y = 12 7x = □ x = □□ x = □ - Algebra

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Question

Complete the following activity, and find the value of x:

5x + 3y = 9   ................ (I)
2x – 3y = 12  ............... (II)

Add equations (I) and (II)

    5x + 3y = 9
+ 2x – 3y = 12
   7x = `square`

x = `square/square`

x = `square`

Fill in the Blanks
Sum

Solution

5x + 3y = 9   ................ (I)
2x – 3y = 12  ............... (II)

Add equations (I) and (II)

    5x + 3y = 9
+ 2x – 3y = 12
   7x = `bb(21)`

x = `bb(21)/bb(7)`

x = `bb(3)`

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Linear Equation in Two Variables
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2022-2023 (March) Official
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