Question

(6.3+2х) × 4.2 = 33.18​

Answer 1

( 6,3 + 2х ) × 4,2 = 33,18

6,3 + 2х = 33,18 ÷ 4,2

6,3 + 2х = 7,9

2х = 7,9 - 6,3

2х = 1,6

х = 1,6 ÷ 2

х = 0,8.

Ответ : х = 0,8.

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Удачи))))

Answer 2

(6.3+2x)*4.2=33.18

26.46+8.4x=33.18

8.4x=6.72

x=0.8

Ответ: 0,8

Answer 3

Let's solve the equation step by step:

(6.3 + 2x) × 4.2 = 33.18

First, we need to simplify the expression within the parentheses:

6.3 + 2x = ?

To isolate the variable "x," we need to get rid of the constant term (6.3) on the left side of the equation. We can do that by subtracting 6.3 from both sides:

(6.3 + 2x) - 6.3 = 0 - 6.3

2x = -6.3

Next, divide both sides by 2 to solve for "x":

x = -6.3 / 2 x = -3.15

Now that we have the value of "x," we can substitute it back into the original equation to check if it's correct:

(6.3 + 2 × -3.15) × 4.2 = ?

(6.3 - 6.3) × 4.2 = ?

0 × 4.2 = 0

So, the solution checks out. The value of "x" that satisfies the equation is -3.15.