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Patricia Herman
Mathematics
21 January, 06:47
Solve the system by elimination
x+3y=5
-x-y=-3
+2
Answers (
1
)
Kody Golden
21 January, 06:58
0
Answer: y = 4
x = - 7
Step-by-step explanation:
1.) x + 3y = 5
-x - y=3
2.) x + 3y = 5
- 3y - 3y
3.) x = 5-3y
4.) - (5-3y) - y=3
5.) - 5+3y-y=3
6.) 2y-5=3
7.) 2y-5=3
+5 + 5
8.) 2y=8
9.) 2y/2 = 8/2
10.) y = 8/2
11.) y=4
12.) x+3 (4) = 5
13.) x+12=5
14.) x+12=5
-12 - 12
15.) x = - 7
answer.) y = 4
x = - 7
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