Question

Simplify by combining like terms.

x+x=
2+3+x=
2x+x+4+1=

Please explain.........

Answer 1

x+x = 2x

since 1+1 = 2 (you basically add the coefficients)

Answer 2

2+3 +x = 5+x

The like terms are 2 and 3.

I'll let you do the last one

Answer 3

7+x?

Answer 4

2x and x are like terms

4 and 1 are like terms

Answer 5

2x+x = ???

4+1 = ???