Question

9) x-(-1) 4,2 47,2 : 4,2= 0,2??? Help please​

Answer 1

x-(-1) x 4247,2÷ 4,2= 0,2
х+1•21236/5:21/5=0,2
х+21236/5•5/21=0,2
x+ 21236•1/21=0,2
х+21236/21=0,2
x= 0,2-21236/21
х=1/5-21236/21
х=-106159/105