3\4b+1\4b+3b=-8 решите уравнение (1\4х+5)-(-3\4х-7)=5,2

Question

3\4b+1\4b+3b=-8
решите уравнение
(1\4х+5)-(-3\4х-7)=5,2

Answer 1

3/4b + 1/4b + 3b = -8
1b + 3b = -8
4b = -8
b = -8/ 2
b= -2

(1/4x + 5) - (-3/4x - 7) = 5,2
1/4х + 5 - 3/4х -7= 5,2
0,5х - 2= 5,2
0,5х= 7,2
х= 14,4