X×8=480 ; 540÷а=60; 180÷x=90

Question

X×8=480 ; 540÷а=60; 180÷x=90

Answer 1

1. x×8=480.
x=480÷8.
x=60.
2. 540÷a=60.
a=540÷60.
a=9.
3. 180÷x=90.
x=180÷90.
x=2.