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+Y=400
We move all terms to the left:
+Y-(400)=0
We move all terms containing Y to the left, all other terms to the right
Y=400
| 22-3(x+2)=31 | | −x=6.8x−4(2.2x−6)-10 | | -4/5（x-6/5）=0 | | −x= 6.8x−4(2.2x−6)−10 | | 6x=4.59=11.19 | | 31=u/5+14 | | −x=−x= 6.8x−4(2.2x−6)−10 | | c=2(3.14)(175) | | y+6=9+4 | | 2/3x+300=1240 | | y/14=24/50 | | (2.05)^x=2 | | 14+4y=18. | | 9/3x+9/x=-9 | | 3c+4=30 | | 4/3x-5=2/9x+14/15 | | 8v+2=-1+8v | | 13^3x=8.4 | | t+23=2t9 | | 1/5x+0.4=1/10x+0.6 | | 8x+72=2x-3 | | 23(x+14)=12 | | 12x–8x–5=–4;x=1/4 | | 8x+6=3x–4.x | | 3(a+3)-3(a-3)=a | | -9/x=9/3x+9 | | 5x2−10=2x−7 | | 6m+7=-23 | | n/8+10=8 | | 7.8-4.9-5.4x=2.3 | | 5y+7=9y-13 | | 7+n/16=8 |