Add : 3b − 7c + 10, 5c − 2b − 15, 15 + 12c + B

Add : 3b − 7c + 10, 5c − 2b − 15, 15 + 12c + b

Sum

3b − 7c + 10
−2b + 5c − 15
+b + 12c + 15
2b + 10c + 10

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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 2.3 | Page 140

Evaluate :

7x − 9y + 3 − 3x − 5y + 8

Add : 13ab − 9cd − xy, 5xy, 15cd − 7ab, 6xy − 3cd

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

Subtract : −2x²y + 3xy²from 8x²y

Subtract : 6a + 3 from a³ − 3a² + 4a + 1

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

Subtract the sum of 5y² + y – 3 and y² – 3y + 7 from 6y² + y – 2.

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

The two adjacent sides of a rectangle are 2x² – 5xy + 3z² and 4xy – x² – z². Find its perimeter.

What must be subtracted from 19x⁴ + 2x³ + 30x – 37 to get 8x⁴ + 22x³ – 7x – 60 ?