answersLogoWhite

0


Best Answer

2a + 21 = 8a - 9

Add 9 to each side:

2a + 30 = 8a

Subtract 2a from each side:

30 = 6a

Divide each side by 6:

5 = a

User Avatar

Wiki User

2010-04-26 06:17:00
This answer is:
User Avatar
Study guides

Algebra

20 cards

A polynomial of degree zero is a constant term

The grouping method of factoring can still be used when only some of the terms share a common factor A True B False

The sum or difference of p and q is the of the x-term in the trinomial

A number a power of a variable or a product of the two is a monomial while a polynomial is the of monomials

➡️
See all cards
3.81
2278 Reviews

Add your answer:

Earn +20 pts
Q: 2a plus 21 equals 8a-9
Write your answer...
Submit
Still have questions?
magnify glass
imp
People also asked