Question

27÷а=5+4 100-у=17+64 а×8=15+9

Answer 1

1) 27/а=5+4
9×а=27
а=27/9
а=3

2) 100-у=17+64
-у=81-100
-у=-19|×(-1)
у=19

3) а×8=15+9
а=24/8
а=3

Answer 2

Я решала вроде правильно

Answer 3

Let's solve the equations step by step:

1. 27÷а = 5 + 4

To find the value of 'a', we need to isolate it on one side of the equation. First, simplify the right-hand side of the equation:

27 ÷ а = 9

Now, to isolate 'а', we can multiply both sides of the equation by 'а':

27 = 9а

Finally, divide both sides by 9 to find the value of 'а':

а = 27 / 9 а = 3

So, the value of 'а' is 3.

2. 100 - у = 17 + 64

To find the value of 'у', simplify the right-hand side of the equation:

100 - у = 81

Now, isolate 'у' by subtracting 100 from both sides of the equation:

-у = 81 - 100 -у = -19

To solve for 'у', multiply both sides by -1:

у = 19

So, the value of 'у' is 19.

3. а × 8 = 15 + 9

First, simplify the right-hand side of the equation:

а × 8 = 24

Now, isolate 'а' by dividing both sides by 8:

а = 24 / 8 а = 3

So, the value of 'а' is 3. Note that this is the same value we found in the first equation.

To summarize, the solutions to the equations are: а = 3 у = 19