8x-(3,7-x)+(1,2-5x) Помогите

Question

8x-(3,7-x)+(1,2-5x)
Помогите

Answer 1

8х-(3.7-х)+(1.2-5х)
8х-3.7+х+1.2-5х
4х-2.5

Answer 2

8X-(3,7-x)+(1,2-5x)
8x-3,7+x+1,2-5x
8x-5x+x=3,7+1,2
4x=4,9
x=4,9-4
x=0,9