Question

@) 4(x + 1) + 11 = 31​

Answer 1

Ответ:

4x+4+11=31

4x+15=31

4x=31-15

4x=16

x=16:4

x=4

Answer 2

To solve the equation $4(x + 1) + 11 = 31$, you can follow these steps:

1. First, distribute the 4 on the left side of the equation to both terms inside the parentheses:

$4(x + 1)$ becomes $4x + 4$.

So the equation becomes: $4x + 4 + 11 = 31$.

2. Next, combine like terms on the left side of the equation:

$4x + 4 + 11$ becomes $4x + 15$.

So the equation is now: $4x + 15 = 31$.

3. Now, isolate the variable $x$ on one side of the equation. To do this, you can subtract 15 from both sides:

$4x + 15 - 15 = 31 - 15$.

This simplifies to: $4x = 16$.

4. Finally, solve for $x$ by dividing both sides by 4:

$\frac{4x}{4} = \frac{16}{4}$.

This simplifies to: $x = 4$.

So the solution to the equation $4(x + 1) + 11 = 31$ is $x = 4$.