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15/4-(4/7)
15/4-4/7
89/28
| 3=-(6+3n)-3(4n-8) | | (3t+3.25)+(t-6)+(4t+2.5)=0 | | x+16=47 | | b*7=63 | | 6(d-7)=9 | | 2h-8+h-15=31 | | .5n-.35n=2.5n+9.4 | | 3(w-1)=3w+1-4(-3w-1) | | 18=3v-12 | | 3e*5x+4=30 | | 16=4(5v+7)-6(-5v+2) | | 3e^5x+4=30 | | 4(u+6)=6u+36 | | 1=4(t-7) | | (z-4)9=-2 | | 9x+2y+8z-5x+5z-4y= | | y=x^4-3x^2+1 | | C=163.45x+107 | | 15=u/2-12 | | 69=5x+14 | | 67=14x-3 | | 6g+2=g-23 | | 2s-33=85 | | -8x+7(x)=-1 | | 8n+15.2=1.5 | | 43=7z-13 | | 9=-4(c+2) | | -8(7r+4)=-256 | | 10=10+5 | | ?121x=11 | | 50n-35n=250n+940 | | 8+2(5u-9)=-2(5u-4)+6u |