Malachy45
Malachy45
24-01-2019
Mathematics
contestada
7x+3y=-12 2x+5y=38
Please help
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leel33lee
leel33lee
24-01-2019
7x + 3y = -12
2x + 5y = 38
5y = -2x + 38
y = -2x/5 + 38/5
7x + 3•(-2x/5+38/5) = -12
29x/5 = -174/5
29x = -174
x = - 6
x=-6
y = -2x/5+38/5
y = -(2/5)(-6)+38/5 = 10
x=-6
y=10
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