Solve For x and y- 187x+243y=687 , 243x+187y=1025
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Answer:
x = (1/2)*(856/215 + 169/28)
y = (1/2) (856/215 - 169/28)
Step-by-step explanation:
Add both
430x + 430y = 1712
x + y = 1712/430 = 856/215
Substracting 1st from 2nd
56x - 56y = 338
x -y = 338/56 = 169/28
x = (1/2)*(856/215 + 169/28)
y = (1/2) (856/215 - 169/28)
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