Question

Уравнение 1)х+263=538+972)1000-х=7893)49z=7 ​

Answer 1

1)x=538+97-263

x=372

2)1000-789=x

x=211

3)z=7/49

z=1/7

Answer 2

1. To solve the equation x + 263 = 538 + 97, you can simplify it step by step:

x + 263 = 538 + 972

First, combine the numbers on the right side of the equation:

x + 263 = 1510

Next, isolate x by subtracting 263 from both sides of the equation:

x = 1510 - 263

x = 1247

Therefore, the solution to the equation is x = 1247.

2. The equation 1000 - x = 789 can be solved as follows:

1000 - x = 789

To isolate x, subtract 789 from both sides of the equation:

1000 - 789 = x

x = 211

The solution to the equation is x = 211.

3. To solve the equation 49z = 7, divide both sides of the equation by 49:

49z = 7

z = 7/49

Simplifying the right side of the equation gives:

z = 1/7

The solution to the equation is z = 1/7 or z ≈ 0.142857.