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x in (-oo:+oo)
R/2 = 2*a // - 2*a
R/2-(2*a) = 0
R/2-2*a = 0
1/2*R-2*a = 0
x naleu017Cy do R
x in (-oo:+oo)
| 3x+3(2x-11)=39 | | (4x-5)+(8x-39)=64 | | 2x^2-x=0-x-1 | | 3x+3(3x-13)=78 | | 59+64= | | 6x+5(2x+8)=120 | | 1.2q-1.6-5.7q=-5.5q-3.5 | | 6x^2+9X=105 | | 41-15= | | (n+5)*9=90 | | 7(9-y)=5(3y-5) | | 3x+3(3x+8)=132 | | (5/4)p=20 | | -4.4s-2=-5.5s-4.2s | | (n-4)*3=12 | | (x)+(x+72)+(x-15)=180 | | x^2=-128 | | 4x+5(x-8)=23 | | (x)+(x+15)+(x+90)=180 | | (2a/3y)5 | | 6x+2(2x-6)=48 | | .75t-.8=.66t | | 180-116= | | x-7.9=-3.3 | | n-30=152 | | n^2-46n=88 | | n+32=20 | | 14+(-3)= | | 180-141= | | 98+43= | | 1.12+n=2.06 | | 3(x-4)=5(x-8) |