i am thinking of a number.i multiply it by 10 and subtract 169.i get the same answer if i multiply by 4 and subtract 7
EQUATIONS!
x*10-169=x*4-7
x*10-169+169=x*4-7+169
x*10=x*4+162
x*6=162
162/6=27
Check it: 27*10=27*4+162
270=108+162
Yay!
So what is the answer?
