Add: 9ax, + 3by - cz, - 5by + ax + 3cz

Solution:

Given terms to add → 9ax, + 3by - cz, - 5by + ax + 3cz

⇒ 9ax + 3by - cz - 5by + ax + 3cz

Grouping like terms

= 9ax + ax + 3by - 5by - cz + 3cz

= 10ax - 2by + 2cz

✦ Try This: Find the sum of 8ab +4 xy - 10yz and -7ab - 5xy - 6yz

Given sum of 8ab +4 xy - 10yz and -7ab - 5xy - 6yz

= [8ab + 4xy - 10yz] + [-7ab - 5xy - 6yz]

= 8ab - 7ab + 4xy - 5xy - 10yz - 6yz

= ab - xy - 16yz

☛ Also Check: NCERT Solutions for Class 8 Maths Chapter 9

---

NCERT Exemplar Class 8 Maths Chapter 7 Problem 81(ii)

Add: 9ax, + 3by - cz, - 5by + ax + 3cz

Summary:

Adding 9ax, + 3by - cz, - 5by + ax + 3cz we get 10ax - 2by + 2cz

---

☛ Related Questions:

• Add: xy²z² + 3x²y²z - 4x²yz², - 9x²y²z + 3xy²z² + x²yz²
• Add: 5x² - 3xy + 4y² - 9, 7y² + 5xy - 2x² + 13
• Add: 2p⁴ - 3p³ + p² - 5p + 7, -3p⁴ - 7p³ - 3p² - p - 12