Question

здравствуйте помогите решить уравнения 1.2(x-5)=0.2x+6 1.3(t-0,6)=1.8t 6(4x-7)-3(5-8x)=0

Answer 1

1.2(x-5)=0.2x+6
1.2x-6=0.2x+6
1.2x-0.2x=6+6
x=12

1.3(t-0.6)=1.8t
1.3t-0.78=1.8t
1.3t-1.8t=-0.78
-0.5t=-0.78
t=-0.78:(-0.5)
t=1.56

6(4x-7)-3(5-8x)=0
24x-42-15+24x=0
24x+24x=42+15
48x=57
x=57:48
x=1.19