ASmellyPrawn ASmellyPrawn

16-11-2014
Mathematics

contestada

SIMULTANEOUS EQUATION

x + 2y = 12
3x - 10y = 0

x = ?
y = ?

Thanks

Respuesta :

domjones287 domjones287

16-11-2014

If you want an explanation just ask
y=1
x=10

Answer Link

pammer10 pammer10

16-11-2014

Step 1) rearrange: x= 12-2y
Step 2) sub x= 12-2y into 3x-10y=0
Step 3) solve
3(12-2y) -10y =0
y=2.25
Step 4) sub y=2.25 into x=12-2y
X=7.5

Answer Link

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