Question

3x+7=-2x-9 решите уравнение

Answer 1

3x+7=-2x-9
3x+2x=-7-9
5x=-16
x=-3,2

Answer 2

3X + 2X  = -9 - 7
5X = - 16
X = -16 : 5
X = -3,2
Ответ : -3,2

Answer 3

To solve the equation 3x + 7 = -2x - 9, follow these steps:

Step 1: Get all the x terms on one side of the equation. Add 2x to both sides to eliminate the -2x term on the right side:

3x + 2x + 7 = -2x + 2x - 9

Simplify:

5x + 7 = -9

Step 2: Get all the constant terms on the other side of the equation. Subtract 7 from both sides to eliminate the +7 term on the left side:

5x + 7 - 7 = -9 - 7

Simplify:

5x = -16

Step 3: Isolate x. To find the value of x, divide both sides by 5:

5x / 5 = -16 / 5

Simplify:

x = -16/5

The solution to the equation is:

x = -16/5

Alternatively, you can express the solution as a decimal:

x ≈ -3.2