Question

18,9+2,1х=10,3+17 решить

Answer 1

$18.9 + 2.1x = 10.3 + 17 \\ 2.1x = 10.3 + 17 - 18.9 \\ 2.1x = 8.4 \\ x = 4$

Answer 2

To solve the equation, we need to isolate the variable "x" on one side of the equation. Let's start by combining like terms on both sides and then isolate "x".

Step 1: Combine like terms 18.9 + 2.1x = 10.3 + 17

Step 2: Move constant terms to one side and the term with "x" to the other side 2.1x = 10.3 + 17 - 18.9

Step 3: Simplify the right side of the equation 2.1x = 8.3 + 17 - 18.9 2.1x = 24.3 - 18.9

Step 4: Calculate the right side of the equation 2.1x = 5.4

Step 5: Isolate "x" by dividing both sides by the coefficient of "x" (2.1) x = 5.4 / 2.1

Step 6: Calculate "x" x ≈ 2.57142857143

Therefore, the solution to the equation is approximately x ≈ 2.57142857143.