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Darwin Lee
Mathematics
5 September, 17:39
4x+9Y=-19
-4X-7=13
Solving systems of equations using any method
+3
Answers (
1
)
Lexie Sharp
5 September, 17:59
0
x = - 4.975
y = 0.1
Step-by-step explanation:
- 4x - 7 = 13 we may assume as eq 1
4x+9y = - 19 this is eq 2
eq 1+2,
9y-7 = - 6
9y=1
y=0.1
y=0.1 in eq 1,
4x+9 (0.1) = - 19
4x = - 19.9
x = - 4.975
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