Add : 8x − 3y + 7z, −4x + 5y − 4z, −X − Y − 2z

Add : 8x − 3y + 7z, −4x + 5y − 4z, −x − y − 2z

Sum

8x − 3y + 7z
−4x + 5y − 4z
−x − y − 2z
3x + y + z

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Combining like Terms

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Chapter 11: Algebraic Expressions - Exercise 11 (B) [Page 140]

Chapter 11 Algebraic Expressions
Exercise 11 (B) | Q 2.2 | Page 140

Add : a − 3b + 3; 2a + 5 − 3c; 6c − 15 + 6b

Find the total savings of a boy who saves ₹ (4x – 6y), ₹ (6x + 2y), ₹ (4y – x) and ₹ (y – 2x) for four consecutive weeks.

Subtract : 3a − 5b + c + 2d from 7a − 3b + c − 2d

Subtract : x³ − 4x − 1 from 3x³ − x² + 6

Subtract : cab − 4cad − cbd from 3abc + 5bcd − cda

Subtract : a²+ ab + b² from 4a² − 3ab + 2b²

Take away – 3x³ + 4x² – 5x+ 6 from 3x³ – 4x² + 5x – 6

How much less 2a² + 1 is than 3a² – 6 ?

The sides of a triangle are x² – 3xy + 8, 4x² + 5xy – 3 and 6 – 3x² + 4xy. Find its perimeter.

The perimeter of a triangle is 8y² – 9y + 4 and its two sides are 3y² – 5y and 4y² + 12. Find its third side.