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Timber
Mathematics
6 September, 09:08
5x+3y=28
2x+y=11
Solve algebraically
+2
Answers (
1
)
Thomas Archer
6 September, 09:13
0
Answer: x=5, y=1
Step-by-step explanation:
Note: (1) means equation 1 and so on
5x+3y=28 (1)
2x+y=11 (2)
(1) - (2) = 3x+2y=17 (3)
(3) - (2) = x+y=6 (4)
(2) - (4) = x=5 (5)
Insert (5) into (2)
2 (5) + y=11
10+y=11
y=1
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