Question

2(x-3)-2(x-7)+7(2x+6)=7

Answer 1

Ответ:

Пошаговое объяснение:

2(x-3)-2(x-7)+7(2x+6)=7

2х-6-2х+14+14х+42=7

14х=7+6-14-42

14х=-43

х=-43:14

х=-3 1\14

Answer 2

Let's simplify the given equation step by step:

2(x - 3) - 2(x - 7) + 7(2x + 6) = 7

First, let's apply the distributive property to expand the terms:

2x - 6 - 2x + 14 + 14x + 42 = 7

Next, combine like terms:

(2x - 2x) + (14x) + (-6 + 14 + 42) = 7

The x terms cancel out, and the constants simplify:

14x + 50 = 7

Now, isolate the variable term by subtracting 50 from both sides:

14x = 7 - 50 14x = -43

Finally, divide both sides by 14 to solve for x:

x = -43/14

Therefore, the solution to the equation 2(x - 3) - 2(x - 7) + 7(2x + 6) = 7 is x = -43/14.