Question

( 2+x)7=21 помогите плиз​

Answer 1

Ответ:

1

Объяснение:

(2+х)×7=21

2+х=21÷7

2+х=3

х=3-2

х=1

(2+1)7=21

3×7=21

Answer 2

Sure, I'd be happy to help you solve the equation (2+x)*7 = 21.

To solve this equation, we need to isolate the variable x on one side of the equation. Let's follow these steps:

Step 1: Distribute the 7 on the left side of the equation: (2 + x) * 7 = 21 14 + 7x = 21

Step 2: Move the constant term to the other side of the equation by subtracting 14 from both sides: 14 + 7x - 14 = 21 - 14 7x = 7

Step 3: Now, isolate x by dividing both sides by 7: 7x / 7 = 7 / 7 x = 1

The solution to the equation is x = 1.