Answered

Explore Westonci.ca, the premier Q&A site that helps you find precise answers to your questions, no matter the topic. Explore a wealth of knowledge from professionals across different disciplines on our comprehensive platform. Experience the convenience of finding accurate answers to your questions from knowledgeable experts on our platform.

How to solve 5x - 4y = 42 and x - 6y = 24 using the elimination method

Sagot :

5x - 4y = 42 ------  (1)
x - 6y = 24 ----------(2), multiply eq. 2 by 5 we get 
5x - 30y = 120 -----(3), 
now use eq. (3) - (1),
   5x - 30y = 120
 -(5x - 4y = 42) 
- 30y + 4y = 120 - 42, 
-26y = 78, y = -78/26 = -3, 
x = 24 + 6y = 24 + (6*[-3]) = 24 - 18 = 6,
x = 6, y = -3.

,