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How do I solve. 4x+5y=3 3x-2y=8
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How do I solve. 4x+5y=3 3x-2y=8

User RamValli
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4x+5y=3 \ \ \ |* 3 \\ 3x-2y=8 \ \ \ |* (-4) \\ \\ 12x+15y=9 \\ \underline{-12x+8y=-32} \\ 15y+8y=9-32 \\ 23y=-23 \\ y=(-23)/(23) \\ y=-1 \\ \\ 3x-2y=8 \\ 3x-2 * (-1) = 8 \\ 3x+2=8 \\ 3x=8-2 \\ 3x=6 \\ x=(6)/(3) \\ x=2 \\ \\ (x,y)=(2,-1)
User Jason Hartley
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