Question

1)(x − 42) · 13 = 390 2)(7x-x):5= 180.​

Answer 1

Ответ:

1) (x-42) • 13 = x= 72

Пошаговое объяснение:

(x−42)×13=390

Разделите обе части на 13.

x−42= 390

черта дроби

13

Разделите 390 на 13, чтобы получить 30.

x−42=30

Прибавьте 42 к обеим частям.

x=30+42

Чтобы вычислить 72, сложите 30 и 42.

x=72

Answer 2

Let's solve each equation:

1. $(x - 42) \cdot 13 = 390$

First, distribute the 13 on the left side:

$13x - 546 = 390$

Next, add 546 to both sides:

$13x = 936$

Now, divide both sides by 13 to solve for $x$:

$x = \frac{936}{13}$

So, $x = 72$.

2. $\frac{(7x - x)}{5} = 180$

Simplify the expression inside the parentheses:

$\frac{6x}{5} = 180$

Now, multiply both sides by 5 to get rid of the fraction:

$6x = 900$

Finally, divide both sides by 6 to solve for $x$:

$x = 150$

So, the solution for the second equation is $x = 150$.