Question

(x-5)*3=3.6 1.2x-十分之九x=10.8

Answer 1

(x-5)*3=3.6

3x-3*5=3.6

3x-15 =3.6

3x=15+3.6

3x=18.6

x=6.2

1.2x-十分之九x=10.8

1.2x-0.9x =10.8

0.3x=10.8

x=36