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Mathematics
Chad
Today, 06:38
2y + x = - 15, x=3y substitution method
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Zavier Clarke
Today, 08:54
0
x = - 9, y = - 3.
As an ordered pair it is (-9, - 3).
Step-by-step explanation:
Substitute x = 3y in equation 1:
2y + 3y = - 15
5y = - 15
y = - 15/5
y = - 3.
Now find x by plugging y = - 3 in x = 3y:
x = 3*-3 = - 9.
Check the answer in equation 1:
2 (-3) + - 9
= - 6 - 9
= - 15 Correct.
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