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Solve by the method of your choice: 8x - 2y = 26 5x + y = 23

User IanG
by
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1 Answer

3 votes

Answer:

x = 4 , y = 3

Explanation:

given the equations

8x - 2y = 26 → (1)

5x + y = 23 ( subtract 5x from both sides )

y = 23 - 5x → (2)

substitute y = 23 - 5x into (1)

8x - 2(23 - 5x) = 26 ← distribute parenthesis on left side and simplify

8x - 46 + 10x = 26

18x - 46 = 26 ( add 46 to both sides )

18x = 72 ( divide both sides by 18 )

x = 4

substitute x = 4 into (2) and solve for y

y = 23 - 5(4) = 23 - 20 = 3

solution is x = 4 , y = 3

User Jorge Rivera
by
7.3k points