Question

1) X + 7/25 = 1; 2) 5 - X = 17/30​

Answer 1

Ответ:

1)х=1-7/25

х=-6/25

2)5-х=17/30

х=5-17/30

х=4 30/30-17/30

х=4 18/30

Answer 2

To solve the given equations, you'll need to isolate the variable "X" in each equation. Let's start with the first equation:

1. X + 7/25 = 1

To isolate X, you can subtract 7/25 from both sides of the equation:

X + 7/25 - 7/25 = 1 - 7/25

This simplifies to:

X = 1 - 7/25

Now, let's find a common denominator for 1 and 7/25, which is 25. Rewrite 1 as a fraction with a denominator of 25:

X = 25/25 - 7/25

Now, subtract the fractions:

X = (25 - 7) / 25

X = 18/25

So, the solution to the first equation is:

X = 18/25

Now, let's move on to the second equation:

2. 5 - X = 17/30

To isolate X, you can start by subtracting 5 from both sides of the equation:

5 - X - 5 = 17/30 - 5

Simplify:

-X = 17/30 - 5

Now, let's find a common denominator for 17/30 and 5, which is 30. Rewrite 5 as a fraction with a denominator of 30:

-X = 17/30 - 150/30

Now, subtract the fractions:

-X = (17 - 150) / 30

-X = -133/30

To isolate X, multiply both sides of the equation by -1 to change the sign:

X = 133/30

So, the solution to the second equation is:

X = 133/30