Question

У - 165 = 620 -а: 15 = 54 : 18матиматика​

Answer 1

Ответ:

Пошаговое объяснение:

у-165=620+173

у=620+173+165

у=958

а÷15=54÷18

а=(54*15)/18

а=45

800-х=870-610

-х=870-610-800

х=540

у-420=600-56

у=544+420

у=964

55×х=820-710

55х=110

х=2

300-х=42×2

-х=84-300

х=216

Answer 2

To solve the equation, we need to find the value of "a." Let's break down the equation step by step:

Step 1: Simplify both sides of the equation.

• We have: У - 165 = 620 - a / 15 = 54 / 18

Step 2: Simplify the expressions on the right side.

• 620 - a / 15 can be written as (620 - a) / 15.
• 54 / 18 can be simplified to 3 (54 ÷ 18 = 3).

Step 3: The equation now looks like this: У - 165 = (620 - a) / 15 = 3

Step 4: Multiply both sides by 15 to eliminate the fraction: 15 * (У - 165) = 15 * (620 - a) / 15 = 3 * 15

Step 5: Simplify further: 15У - 2475 = 620 - a = 45

Step 6: Now, let's isolate the variable "a" by moving the constant terms to the other side of the equation:

• a = 620 - 45 + 2475

Step 7: Simplify the expression on the right side:

• a = 620 + 2475 - 45
• a = 3050

So, the value of "a" is 3050.