Is this how you do this problem? Algebra.?

Question

3a-3b/9 + 4/9b

3a-3b/9 (*9) + 4/9b (*9)

3a-3b+4b

3a-b

and this one

t+t^2/2+t^2+t

t+t^2/2+t^2+t (2)

2t+t^2+2t^2+t

3t+3t^2

Thanks in advance!!!

Answer 1

No...you can only do that in an equation, not in an expression