Respuesta :

evevg23

Answer:

x+18

Step-by-step explanation:

Combine Like Terms:

=4x+3+−3x+15

=(4x+−3x)+(3+15)

=x+18
Your answer is: x+18
Because if you combine 3 + 15 you get 18 and when you combine 4x & -3x you get 1
A= x + 18

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