Question

20а=568+432 963-х=900-579

Answer 1

1)20а=1000
а=1000:20
а=50
20x50=1000
1000=1000
2)963-x=900-579
963-x=321
x=963-321
x=642
963-642=321
321=321

Answer 2

Пошаговое объяснение:

20а=1000

а=50

963-х=321

Х=642

Answer 3

To solve these equations, we need to find the values of the variables "а" and "х" that satisfy the equations. Let's solve them step by step:

1. 20а = 568 + 432 To solve for "а," divide both sides of the equation by 20:

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а = (568 + 432) / 20
а = 1000 / 20
а = 50

So, the value of "а" is 50.

2. 963 - х = 900 - 579 First, subtract 900 from both sides of the equation:

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963 - х - 900 = -579
63 - х = -579

Now, subtract 63 from both sides of the equation to solve for "х":

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-х = -579 - 63
-х = -642

Divide both sides by -1 to isolate "х":

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х = 642

So, the value of "х" is 642.

To summarize:

• The value of "а" is 50.
• The value of "х" is 642.