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solve the stimultaneous equations

4x-y=13

x+v=2

 Oct 30, 2020
 #1
avatar+10581 
+1

solve the stimultaneous equations
4x-y=13
x+y=2

 

Hello Guest!

 

\(4x-y=13\\ x+y=2 \\ y=2-x\\ 4x-(2-x)=13\\ 4x-2+x=13\\ 5x=15 \)

\(x=3\)

\(y=2-x\\ y=2-3\)

\(y=-1\)

laugh  !

 Oct 31, 2020
 #2
avatar+28021 
+2

Add the equations to get

5x = 15     then x = 3

x+y = 2     then y = -1

 Oct 31, 2020

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