Question

1)4х+3.96=4  2)3.5*(2Х-7)=59.5

Answer 1

1)4х+3.96=4
4х=4-3.96
4х=0.04
х=0.04:4
х=0.01
2)3.5*(2х-7)=59.5
7х-24.5=59.5
7х=59.5+24.5
7х=84
х=84:7
х=12