Respuesta :
Answer:
x=-1, y=5. (-1, 5). The first number is -1 and the second number is 5.
Step-by-step explanation:
6x+2y=4
2x+4y=18
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-2(6x+2y)=-2(4)
2x+4y=18
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-12x-4y=-8
2x+4y=18
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-10x=10
x=10/-10
x=-1
6(-1)+2y=4
-6+2y=4
2y=4-(-6)
2y=4+6
2y=10
y=10/2
y=5
The first number is - 1 and second number is 5.
Let us consider that first number is x and second number is y.
Since, Six times a number plus twice a second number is four.
Equation is, [tex]6x+2y=4.............(1)[/tex]
Since, Twice the first number plus four times the second number is eighteen.
Equation is, [tex]2x+4y=18\\\\x=9-2y[/tex]
Substituting value of x in equation 1.
[tex]6(9-2y)+2y=4\\\\54-12y+2y=4\\\\10y=50\\\\y=50/10=5[/tex]
So, [tex]x=9-2y=9-10=-1[/tex]
Thus, first number is - 1 and second number is 5.
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