Question

розвяжи рівняння
3(x-2)=-10x
-(2x-5)=-5x
-3(x-3)=7
5(x+2)=11(x-3)​

Answer 1

3 * (х - 2) = - 10х

3х - 6 = - 10х

3х + 10х = 6

13х = 6

х = $\frac{6}{13}$

- (2х - 5) = - 5х

- 2х + 5 = - 5х

- 2х + 5х = - 5

3х = - 5

х = $-\frac{5}{3}$

- 3 * (х - 3) = 7

- 3х + 9 = 7

- 3х = 7 - 9

- 3х = - 2

х = $\frac{2}{3}$

5 * (х + 2) = 11 * (х - 3)

5х + 10 = 11х - 33

5х - 11х = - 33 - 10

- 6х = - 43

х = $\frac{43}{6}$