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• The system of differential equations in steps

• How to use it?

• (x-2y)/4+(x+5y)/2=1; (x-2y)/2+(x-5y)/4=2,5
• x^2+y^2=8x-37+10y; (x-7)^2+(y-9)^2=a^2
• x1+2x2+x3=2; 2x1+3x2+4x3=4; 2x1+x2+x3=2
• x²+y²+2xy=4; x-y=4

• Identical expressions

• x²+y²+2xy= four ; x-y= four
• x² plus y² plus 2xy equally 4; x minus y equally 4
• x² plus y² plus 2xy equally four ; x minus y equally four

• Similar expressions

• x²+y²-2xy=4; x-y=4
• x²+y²+2xy=4; x+y=4
• x²-y²+2xy=4; x-y=4