Question

(23-x):6=3; 5×(3×x-9)=60

Answer 1

(23-x):6=3
23-x=6*3
23-x=18
x=23-18
x=5

5*(3x-9)=60
15x-45=60
15x=60+45
15x=105
x=105:15
x=7

Answer 2

(23-x):6=3
23-x=3x6
23-x=18
x=23-18
x=5
5×(3×X-9)=60
3×X-9=60:5
3×X-9=12
3×X=12+9
3×X=21
X=21:3
X=7