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x-(2*x)+y+4*y;x+y+y-7
721;8
9-x^2
tan(2*y)
0.084;2
| 2(2a+1)=3(a+4) | | 2y-4=5y-1 | | 9+x=-4x+19 | | y+4=28 | | 9w-3=16w+11 | | 4x-3/2=7/2 | | -6+4x=-2x+42 | | 2q-3=7-3q | | 7x+8=-22+4x | | 5x+3+x=69 | | 4=3(1)+8 | | 4+7x=23 | | 2u-3=6-u | | 7x+8-3x=52 | | -12=-4x+5x-7 | | 9X-2=3x+1 | | B+3=20-b | | -4x+7=-53+6x | | 1+5x-2x=-29 | | 9x=2+20 | | (3x-5)-(5x+4)=0 | | -10=4x+5x-1 | | y=21+-3(5) | | 3x=x-34 | | y=21+-3(4) | | y=21+-3(3) | | y=21-3(2) | | y=4+6(8) | | 7x+5x=21 | | y=4+6(5) | | y=4+6(4) | | y=4+6(2) |