Question

Решать уровнение а )7/20+х=15/20б)1 23/23 - а=17/25в)у- 15/28=3/28помогите пожалуйста ​

Answer 1

Это с дробями?
Если да,то лови
а)7/20+х=15/20
х=15/20-7/20
х=8/20

Я думаю,что ты ошибся во втором с цифрой 1,так как не получается нормально посчитать

б)23/23-a=17/25
б=23/23-17/25
б=8/25

в)у-15/28=3/28
у=15/28+3/28
у=18/28

Answer 2

Solving Equations

Let's solve the given equations step by step:

a) 7/20 * x = 15/20

To solve this equation, we can start by multiplying both sides of the equation by the reciprocal of 7/20, which is 20/7. This will cancel out the fraction on the left side, leaving us with:

x = (15/20) * (20/7)

Simplifying the right side of the equation gives us:

x = 15/7

So the solution to the equation is x = 15/7.

b) 1 + 23/23 - a = 17/25

To solve this equation, we can start by simplifying the left side of the equation:

1 + 23/23 - a = 17/25

Since 23/23 is equal to 1, we can simplify further:

1 + 1 - a = 17/25

Combining like terms gives us:

2 - a = 17/25

To isolate the variable a, we can subtract 2 from both sides of the equation:

-a = 17/25 - 2

Simplifying the right side of the equation gives us:

-a = 17/25 - 50/25

Combining the fractions on the right side gives us:

-a = -33/25

To solve for a, we can multiply both sides of the equation by -1:

a = 33/25

So the solution to the equation is a = 33/25.

c) u - 15/28 = 3/28

To solve this equation, we can start by adding 15/28 to both sides of the equation:

u - 15/28 + 15/28 = 3/28 + 15/28

Simplifying both sides of the equation gives us:

u = 18/28

We can simplify the fraction on the right side by dividing both the numerator and denominator by their greatest common divisor, which is 2:

u = 9/14

So the solution to the equation is u = 9/14.

I hope this helps! Let me know if you have any further questions.