Question

решите уравнение 3(х+1)-4•3(х-2)=69 4х-3*2х=40

Answer 1

3(x+1)-4*3(x-2)=69
3x+3-12x+24=69
-9x+27=69
-9x=69-27
-9x=42
x=42:(-9)
x=$- 4frac{2}{3}$

4x-3*2x=40
4x-6x=40
-2x=40
x=-20