Question

3х + 3(х + 20) = 480

Answer 1

Объяснение:

3x+3x+60=480

6x=480-60

6x=420

x=420:6

x=70

Answer 2

3х + 3х +60=480

6х = 480-60

6х = 420

х = 70

Answer 3

To solve the equation 3x + 3(x + 20) = 480, we need to simplify and then solve for x.

Let's start by simplifying the equation:

3x + 3(x + 20) = 480

First, distribute the 3 to the terms inside the parentheses:

3x + 3x + 60 = 480

Combine like terms:

6x + 60 = 480

Now, isolate x by subtracting 60 from both sides of the equation:

6x + 60 - 60 = 480 - 60

6x = 420