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Using a grid, solve the simultaneous equations.
X−4y = −5  
−x+2y =1

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X−4y = −5 
−x+2y =1

X−4y = −5

 x  −5  3 
 y  0 2


−x+2y =1

 x  −1  7 
 y  0 4

x=3 , y=2
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