1.

LausSolre for a and y2+1 +4-1 = 8,using substitution to thed,2-1 +4+1 -923

Answer»

x+1/2 + y-1/3=8; x-1/3+y+1/2=9; 3(x+1)+2(y-1)=48; 3x+3+2y-2=48; 3x+2y=48-1=47; 2(x-1)+3(y+1)=54; 2x-2+3y+3=54, 2x+3y=59;; (2x+3y=59)3= 6x+9y=177,; (3x+2y=47)2;; 6x+4y=94/5y=83,; y=83/5; 3x+2(83/5)=47; 15x+166=235; 15x=235-166=69; x=69/3=23;

15x=69; x=69/15=23/5



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