solve using elimination 5x-9y=-43 3x+8y=68
Mathematics · High School · Wed Jan 13 2021
Answered on
Given the system of linear equation:
5x - 9y = -43 or 5x - 9y + 43
3x + 8y = 68 or 3x + 8y - 68
Solve using Elimination.
Solution:
In order to solve the given systems of linear equation, we simply needed to equate the two equations into one single solution.
5x - 9y + 43 = 3x + 8y - 68
Transpose 3x + 8y -68 on the other side of the equation, hence we must take note that when transposing a number, the sign changes.
= 5x - 9y + 43 - 3x - 8y + 68
Combine like terms in order to eliminate.
= 2x -17y +11
Final answer:
= 2x -17y +11