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18-((2*3)/7)-4
18-(6/7)-4
18-4-6/7
18-34/7
92/7
| 6x-20+6x=3x-12 | | -(2+2)+(3x-1)=4 | | 20+30h=30+25h | | 3.6m+4.2=15 | | 9x+5=-44 | | (1-2i)z^2-6iz-1+2i=0 | | 5x-2x-3=18 | | 2.5=50 | | k+7=37 | | 15a-8a=70 | | 0.003x-0.2=0.07 | | C=20+30h | | 3(2x-3)=8-(4-4x) | | 4x^2-180x-400=0 | | x^3-27x^2-120x-124=0 | | 25.12=1/3(12.56x) | | 5(x+1)-7=3(-1)+2x | | y+5z=27 | | u+6x=11 | | x^3+3x=200 | | x-15.99=58.06 | | 2x+2x=y+5 | | ln(19)+ln(x)=x | | .14x+.06(3000-x)=580 | | 5u+6z=28 | | .65x+.1x=x-10 | | 81-3x-6+2x=36-36x+54 | | 34.7=6.4-3.7 | | 5u+4x=36 | | A=1/2(25)(18) | | 5u+6y=55 | | 36*9-3x-6+2x=36-36x+18*3 |