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Mathematics
Gross
17 December, 13:15
What is x + y = 12 if x = 2y
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Gregory Caldwell
17 December, 15:31
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I believe the answer is 4.
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Adolfo
17 December, 16:11
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x=8
y = 4
Step-by-step explanation:
x + y = 12 if x = 2y
Replace x with 2y in the first equation
2y+y = 12
Combine like terms
3y = 12
Divide by 3
3y/3 = 12/3
y = 4
Now we can find x
x=2y
x=2 (4)
x = 8
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