## How I can solve this two equations... ?

Hi all ..

How I can solve this two equations to get a and w0 ... ?
12 .5 = W0 + 10a ====== 1
20 = 10W0 + 5a ======= 2

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this my trying ...
first I will multiply first equation with (-10) to remove the W0 then I will add both ..
-125 = -10W0 - 100 a
20 = 10W0 + 5a
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-105 = -95 a
a = 1.1

is that correct ... ?
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 Either you can isolate a in one of them and insert a in the other to isolate W0. Or you could substract 2 times the equation below from the above yielding: $12.5-40 = W_0 - 20W_0 +10a -10a$ Then a should be easy(insert W0)
 Correct. Called Gaussian Elimination.

## How I can solve this two equations... ?

thanks so much ..

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