Solve simultaneous equations 3x+2y=9 5x-2y=7
Here we need to get rid of either the x or the y to find one solution to start us off. By adding these equations together we get:
3x+5x+2y-2y=9+7
The y's are eliminated to leave 8x=16. So x is 2!
We can then substitute the x value into one of the equations to find the y:
3(2)+2y=9
2y=3 therefore, y=1.5
JP
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