Question

1. (х - 4) + (х + 6) = 4 2. (х - 5) - (5 - 3х) = 2 3. 23 - (х + 5) = 13

Answer 1

Ответ:

1. (х-4)+(х+6)=4;

х-4+х+6=4;

2х+2=4;

2х=2;

х=1.

2. (х-5)-(5-3х)=2;

х-5-5+3х=2;

4х-10=2;

4х=12;

х=3.

3. 23-(х+5)=13;

23-х-5=13;

-х+18=13;

-х=13-18;

-х=-5;

х=5.

Answer 2

Sure, I can help you solve these equations. Let's go through them one by one:

1. $(x - 4) + (x + 6) = 4$

First, simplify the equation:

$x - 4 + x + 6 = 4$

Combine like terms:

$2x + 2 = 4$

Subtract 2 from both sides:

$2x = 2$

Divide by 2:

$x = 1$

So, the solution is $x = 1$.

2. $(x - 5) - (5 - 3x) = 2$

First, simplify the equation:

$x - 5 - 5 + 3x = 2$

Combine like terms:

$4x - 10 = 2$

Add 10 to both sides:

$4x = 12$

Divide by 4:

$x = 3$

So, the solution is $x = 3$.

3. $23 - (x + 5) = 13$

First, simplify the equation:

$23 - x - 5 = 13$

Combine like terms:

$18 - x = 13$

Subtract 18 from both sides:

$-x = -5$

Multiply by -1:

$x = 5$

So, the solution is $x = 5$.

Here are the solutions for the three equations:

1. $x = 1$
2. $x = 3$
3. $x = 5$