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Mathematics
Kennedi Morgan
3 April, 00:52
Y = 5x - 13
4x + 3y = 18
+2
Answers (
1
)
Urijah Rowe
3 April, 04:31
0
replace Y = 5x - 13
into
4x + 3y = 18
4x + 3 (5x - 13) = 18
4x + 15 - 39 = 18
4x - 24 = 18
4x = 18 + 24
4x = 42
x = 42/4
x = 10.5
Y = 5 (10.5) - 13
= 52.5 - 13
= 39.5
answer: x = 10.5 and y = 39.5
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