Step-by-step explanation:
because we can also find out the value of x in second equation like this
3x=21
x=21/3
x=7
Step-by-step explanation:

100/99 is one, there are infinite answers though
Answer:
(21)+(6) is an equivalent expression
Step-by-step explanation:
(7x3)2(x3)
(21)+(6)
That’s the equation for pi, but the simplified fraction is 22/3 (please mark brainliest)