Answered

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solve simultaneous equation
2x + 4y = 1
3x-5y=7

Sagot :

luana
[tex] \left \{ {{2x+4y=1\ \ | *(-3)} \atop {3x-5y=7\ \ | *2}} \right. \\\\ \left \{ {{-6x-12y=-3} \atop {6x-10y=14}} \right.\\+----\\add\ both\ equations\\\\ -22y=11\ \ \ | divide\ by\ -22\\\\ y=-\frac{1}{2}\\\\ 2x=1-4y\ \ | divide\ by\ 2\\\\ x=\frac{1-4y}{2}=\frac{1-4*(-\frac{1}{2})}{2} =\frac{3}{2}[/tex]
bitsa

Answer

y=-1/2 and x=3/2

Step-by-step explanation:

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