Question

4,2-(х-5,8)=15,3 как решить уравнение

Answer 1

4,2-х+5,8=15,3

-х+10=15,3

-х=5,3

х=-5,3

Answer 2

Очень просто решить

$x - 5.8 = 4.2 - 15.3 \\ x - 5.8 = - 11.1 \\ x = - 11.1 + 5.8 \\ x = - 5.3$

Проверка:

4,2-(-5,3-5,8)=15,3

4,2+11,1=15,3

15,3=15,3

Answer 3

To solve the equation 4.2 - (x - 5.8) = 15.3, follow these steps:

Step 1: Distribute the negative sign across the parentheses by changing the sign of each term inside the parentheses.

4.2 - x + 5.8 = 15.3

Step 2: Combine the constant terms on the left side.

(4.2 + 5.8) - x = 15.3

9 - x = 15.3

Step 3: Isolate the variable (x) on one side of the equation. To do this, you want to get rid of the constant term on the left side. Since it is subtracted from x, you can do the inverse operation, which is to add it to both sides.

• x = 15.3 - 9

Step 4: Simplify the right side.

• x = 6.3

Step 5: To find the value of x, you need to isolate x further by multiplying both sides by -1. Remember, multiplying both sides of an equation by the same number does not change the equality.

x = -6.3

So, the solution to the equation is x = -6.3.