Quiz day

Tenglamani yeching. $$2x-3\left(x-1\right)=4+2\left(x-1\right)$$

Tenglamani yeching.

$$6-\frac{x-1}{2}=\frac{3-x}{2}+\frac{x-2}{3}$$

Tenglamani yeching.

$$\frac{x}{3}-\frac{x+8}{6}=\frac{3x+2}{9}-\frac{x+11}{6}$$

Tenglamani yeching.

$$\frac{2x+3}{2}+\frac{2-3x}{3}=2,1\left(6\right)$$

$$40\cdot41\cdot42\cdot...\cdot79\cdot80$$ ko'paytma nechta nol bilan tugaydi?

Soddalashtiring. $$5b-\left(6b+a\right)-\left(a-6b\right)$$

Soddalashtiring. $$\left(1-9y\right)-\left(22y-4\right)+5$$

Ifodani soddalashtiring. $$27a^3-135a^2b+225ab^2-125b^3$$

12378,0652 sonini minglar xonasigacha yaxlitlang.

Tenglamani yeching.

$$\left(1\ \frac{2}{7}x-\frac{1}{3}\right)\cdot21=2$$