It is not possible to answer the question because:
You combine like terms.
456
no, combining like terms means combine the terms that are the same 15+x+6+x=28 combine like terms 21+2x=28 2x=7 x=3.5
-k + 3k = 2k
3k + 1
12t + 15
A mathematical expression does not have an answer, if it is algebraic and all of the terms are unlike. For example, x+7y does not have an answer because there are no definite solutions, and there is no possibility to combine like terms. However, the expression 2x+7y+3x does have an answer, but the solution is merely the combination of like terms. (5x+7y)
6
Combine like terms to give 3n + 2
Combine like terms. 6x - 2y +7.
9.120000000000001
11