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13 votes
Using a graphical method, solve the sim ultaneous equations
y = 2x + 2 and x + y = 5

User Alterecho
by
6.3k points

1 Answer

8 votes
x+y=5
Making the y subject
y=5-x
Then we made these two equations equal to each other
2x+2=5-x
3x=3
x=1
The we substituted x=1 to one of the original equation
Like y=2(1)+2 or 1+y=5
We get y=4
User Leonard Richardson
by
6.5k points
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