## Step-by-step explanation

Problem to solve:

Learn how to solve calculus problems step by step online.

$\int3dx+\int-\sin\left(x\right)dx$

Learn how to solve calculus problems step by step online. Calculate the integral of int(3-1*sin(x))dx. The integral of the sum of two or more functions is equal to the sum of their integrals. The integral \int3dx results in: 3x. The integral \int-\sin\left(x\right)dx results in: \cos\left(x\right). After gathering the results of all integrals, the final answer is.