Best Answer

Multiply first equation by 3: 9x + 15y = 63

Add that and second equation: 19y = 57

Divide by 19: y = 3, so x = 2

User Avatar

Wiki User

13y ago
This answer is:
User Avatar
Study guides


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
3046 Reviews

Add your answer:

Earn +20 pts
Q: 3x plus 5y equals 21 -9x plus 4y equals -6?
Write your answer...
Still have questions?
magnify glass