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4*(3*x+2)+5*(2*x+3) = -(2*x+13);x
x
(3^0.5-2^0.5)^2-(2^0.5+3^0.5)^2
y = 3*x-7.2;3;-7.2
0*3-7.2
3*(x+3) = 2*(x+4)+x+1;x
x
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