Question

X*30=1000-730 880:y=535-491 a-45=889-254

Answer 1

Ответ:

9;  20;  680

Пошаговое объяснение:

X*30=1000-730

X*30=270

Х=270:30

Х=9

880:y=535-491

880:y=44

у=880:44

у=20

a-45=889-254

a-45=635

а=635+45

а=680

Answer 2

Let's solve these equations one by one:

1. $x * 30 = 1000 - 730$

First, simplify the right side of the equation:

$1000 - 730 = 270$

Now, divide both sides of the equation by 30 to solve for (x):

$x = \frac{270}{30}$

$x = 9$

So, the solution to the first equation is $x = 9$.

2. $880 : y = 535 - 491$

First, simplify the right side of the equation:

$535 - 491 = 44$

Now, rewrite the equation:

$880 / y = 44$

To solve for $y$, multiply both sides by $y$:

$880 = 44 * y$

Now, divide both sides by 44 to solve for $y$:

$y = \frac{880}{44}$

$y = 20$

So, the solution to the second equation is $y = 20$.

3. $a - 45 = 889 - 254$

First, simplify the right side of the equation:

$889 - 254 = 635$

Now, rewrite the equation:

$a - 45 = 635$

To solve for $a$, add 45 to both sides:

$a = 635 + 45$

$a = 680$

So, the solution to the third equation is $a = 680$.