Question

1) 2(x-3) = 402) -4 (20+5) = -163)-3 (2-x) = 4(x + 9)​

Answer 1

Ответ:

х-3=40:2

х-3=20

х=20+3

х=23

20+5=-16:-4 где х?

-6+3х=4х+36

3х-4х=36+6

-1х=42

Answer 2

Ответ:

1)x=23

2)не верно

3) x=-3,6

Объяснение:

1)2x-6=40

2x=40+6

2x=46

x=23

2)не верно

3)-6x=4x+36

-6x-4x=36

-10x=36

x=36:(-10)

x=-3,6

Answer 3

Let's solve each equation step by step:

1. $2(x - 3) = 40$

First, distribute the 2 on the left side:

$2x - 6 = 40$

Now, add 6 to both sides:

$2x = 46$

Finally, divide both sides by 2:

$x = 23$

So, the solution to the first equation is $x = 23$.

2. $-4(20 + 5) = -16$

First, simplify the expression within the parentheses:

$-4(25) = -100$

So, the solution to the second equation is $-100$.

3. $-3(2 - x) = 4(x + 9)$

Distribute on both sides:

$-6 + 3x = 4x + 36$

Subtract $3x$ from both sides:

$-6 = x + 36$

Subtract 36 from both sides:

$-42 = x$

So, the solution to the third equation is $x = -42$.