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2*x-y-1
4*y-x+4
9/(x^4)-(6/x)
2*x
2*x-y-1
| 9-(3-2x)=6(4+3x) | | 9(3-2x)=6(4+3x) | | 2.4+x=0 | | (12n-n)+5n=16n | | -2+8(x-5)=17x+2-9x | | 72:3/8 | | X-8.3=-6.9 | | R-1/10=19/10 | | -2(x+4)+3=6(x+2)+4 | | 47=-x/7 | | 30=u/3-12 | | 63=4u+11 | | U/3=-28 | | -3(7y-3)+7y=4(y+3) | | 8(3(-5)+2)-3(-5)=3(5(-5)-4)-2 | | 6=w/4-8 | | 6x-4(4-x)=10 | | y=(200-4x)/6 | | U-1/3=2^3/5 | | 8y=3x-8 | | 3x/8= | | 2Y+3X=36 | | 90+60+3x=180 | | 2x-3(1-x)+7=-5 | | (x+50)+(3x+120)+(4x+110)=360 | | 30+3x=180 | | 60+90+x+2x=180 | | 3+3*10=n | | 18x+31-30+1=32 | | F(X)=X^11/4 | | 3+3*10= | | 3e^4x=18 |