Question

Решите уравнение (2x+3)+(3x+4)+(5x+5)=12-7x

Answer 1

(2x + 3) + (3x + 4) + (5x + 5) = 12 - 7x
2х + 3 + 3х + 4 + 5х + 5 = 12 - 7х
10х + 12 = 12 - 7х
10х + 7х = 12 - 12
17х = 0
х = 0
Ответ: 0

Answer 2

To solve the equation (2x + 3) + (3x + 4) + (5x + 5) = 12 - 7x, we need to simplify the expression on both sides and then isolate the variable x.

Let's start by simplifying the expression on the left side of the equation:

(2x + 3) + (3x + 4) + (5x + 5) = 12 - 7x

First, we can remove the parentheses by distributing the terms inside them:

2x + 3 + 3x + 4 + 5x + 5 = 12 - 7x

Next, we can combine like terms on both sides of the equation:

(2x + 3x + 5x) + (3 + 4 + 5) = 12 - 7x

10x + 12 = 12 - 7x

Now, let's isolate the variable x. We can do this by moving all the terms with x to one side of the equation and the constant terms to the other side. We can achieve this by adding 7x to both sides:

10x + 7x + 12 = 12 - 7x + 7x

17x + 12 = 12

Next, we'll move the constant term 12 to the other side by subtracting 12 from both sides:

17x + 12 - 12 = 12 - 12

17x = 0

Finally, we can solve for x by dividing both sides of the equation by 17:

(17x)/17 = 0/17

x = 0

Therefore, the solution to the equation (2x + 3) + (3x + 4) + (5x + 5) = 12 - 7x is x = 0.