Question

Решите уравнение, помогите плиз

Answer 1

a) 5.6-3(2-0.4x)=0.4(4x+1)
5.6-6+1.2x=1.6x+0.4
1.2x-1.6x=0.4-5.6+6
-0.4x=0.8
x=-2
б)2/3(1/3x-1/2)=4x+2 1/2
2/9x-1/3=4x+2 1/2
2/9x-4x=2 1/2+1/3
-3 7/9x=2 5/6
x=-3/4