Question

12х-7×(х +4)= 26 -4х =

Answer 1

Раскрываем скобки.
12х-7х - 28= 26- 4х
12х-7х+4х = 26+28
9х = 54
х = 54:9
х = 6
Ответ: 6.

Answer 2

12х-7(х+4)=26-4х
12х-7х-28=26-4х
9х=54
х=6

Answer 3

Let's solve the equation step by step:

1. Start with the given equation: 12x - 7(x + 4) = 26 - 4x

2. Distribute the -7 on the left side of the equation: 12x - 7x - 28 = 26 - 4x

3. Combine like terms on the left side: (12x - 7x) - 28 = 26 - 4x 5x - 28 = 26 - 4x

4. To isolate the variable terms (x terms) on one side, let's add 4x to both sides: 5x + 4x - 28 = 26 - 4x + 4x 9x - 28 = 26

5. Now, to isolate the constant term on one side, let's add 28 to both sides: 9x - 28 + 28 = 26 + 28 9x = 54

6. Finally, solve for x by dividing both sides by 9: x = 54 / 9 x = 6

So the value of x that satisfies the equation is x = 6.