14-6x=25=10x
257*3
99501393303
90860925474
23308498777
22052842171
1903623110948
19159206606
193223817554
9177064342
2189613212
331045912146...
-3x-(-5)=-2x+2-(-6)
3ax + 5aby = 12x + 40y
factorize x^2+x-20
9950139.3303
9086092.5474
19159266606
factorize x^2-6x-16
