Question

3×(x-2)+7×(3-x)=12 Помогите

Answer 1

Ответ:

0,75

Пошаговое объяснение:

3 * (x - 2) + 7 * (3 - x) = 12

3x - 6 + 21 - 7x = 12

3x - 7x = 12 + 6 - 21

-4x = - 3

x = - 3 ÷ (-4) = 0,75

Answer 2

Решение:

3×(x-2)+7×(3-x)=12

(3×х)-(3×2)+(7×3)-(7×х)=12

3х-6+21-7х=12

-4х+15=12

-4х=12-15

-4х=-3

-х=-3/4=-0,75

-х=-0,75

х=0,75

Ответ: х=0,75

Answer 3

Sure, I can help you solve this equation. Let's start by simplifying and solving step by step:

$3(x-2) + 7(3-x) = 12$

First, distribute the numbers:

$3x - 6 + 21 - 7x = 12$

Combine like terms:

$-4x + 15 = 12$

Now, isolate the variable $x$:

$-4x = 12 - 15$

$-4x = -3$

Divide by $-4$ to solve for $x$:

$x = \frac{-3}{-4}$

Simplify the fraction:

$x = \frac{3}{4}$

So, the solution to the equation is $x = \frac{3}{4}$.