Question

150х20-а=1200Помогите решить.​

Answer 1

Ответ:

Пошаговое объяснение:

150*20-а=1200

3000-а=1200

3000-1200=а

а=1800

Answer 2

To solve the equation, we need to isolate the variable "а" on one side of the equation. Follow these steps:

Step 1: Move the term "1200" to the other side by adding it to both sides of the equation: 150х20 - а + 1200 = 1200 + 1200

Simplified equation: 150х20 - а + 1200 = 2400

Step 2: Move the term "150х20" to the other side by subtracting it from both sides of the equation: 150х20 - а + 1200 - 150х20 = 2400 - 150х20

Simplified equation: -а + 1200 = 2400 - 150х20

Step 3: Finally, isolate "а" by subtracting 1200 from both sides of the equation: -а + 1200 - 1200 = 2400 - 150х20 - 1200

Simplified equation: -а = 1200 - 150х20

Step 4: To find the value of "а," divide both sides of the equation by -1 (remember that dividing by a negative number changes the sign): -а / -1 = (1200 - 150х20) / -1

Simplified equation: а = -1200 + 150х20

Now you have the solution for "а" in terms of "х." If you have a specific value for "х," you can plug it into the equation to find the corresponding value of "а."