10x2 +15x +63 =2x +3
5x2 - 25x+12 = x-5
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Step-by-step explanation:
i-20+15x+63=2x+3
83+15x=2x+3
83-3=2x-15x
80=-13x
x=-80/13
ii- 10-25x+12=x-5
32-25x=x-5
32-5=-5x+25x
27=20x
x=27/20
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