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50*x+22*y-654;70*x+42*y-994
1;4;3;8;2;0
0.7;0.9
a^2+5^2 = 13^2;a
a
48*x-8*x^2-32 = 0;x
x
| 10n^2-59n+45=0 | | 8.8a+10=80.4 | | (X*.1)+X=19651.1 | | 6b^2-20b+6=0 | | 3x(x)+7=0 | | y+9=-6(x+4) | | I-21=6 | | 15y-20=110y | | 3x_5/16=3/4-1/8x-1/2 | | -17x+15x=28 | | 29y-54y=116 | | 1-25x^2=1 | | 110+6.5x=72.5+9.5 | | -26-14x=25 | | 2+(3x-4)-5=20 | | (5X-1)+-1(X-1)= | | 2/3h7/9 | | z^2-4z+4i=0 | | 2x^2+3x+m=0 | | (x-7)(x+3)=(x-5)(x+2) | | Y=X^4/16 | | 4z-10=z+8 | | 2x=3x+5y | | 33x+36=30x+59 | | 12+5x=-18 | | -14-16+d=-12 | | 7y+11=3x-17 | | Sin3/2pigreco | | 26+33x=59+30x | | 3c^2=16c+12 | | y=1/8x-1/6 | | 2x+8x=9 |