Question

5) -5m + 24 = m; 814. 1) 12a - 1= -a + 25;3) 8 + 3b = -7 + 2b;5) 3y - 3 = 5 - y;15. 1) 2x + 3 = x - 6;1-​

Answer 1

Відповідь:

1) 12a - 1= -a + 25;

12а+а=25+1

13а=26

а=26:13

а=2

12*2-1=-2+25

23=23

3) 8 + 3b = -7 + 2b;

3b-2b=-7-8

1b=-15

b= -15

8+3*(-15)=-7+2*(-15)

8-45=-7-30

-37=-37

5) 3y - 3 = 5 - y;

3у+у=5+3

4у=8

у=8:4

у=2

3*2-3=5-2

3=3

15. 1) 2x + 3 = x - 6;

2х-х=-6-3

1х=-9

х=-9

2*(-9)+3=-9-6

-18+3=-15

-15=-15

Answer 2

Let's solve each of these equations step by step:

5. -5m + 24 = m

First, let's isolate the variable 'm' by moving all terms with 'm' to one side:

-5m - m = 24

-6m = 24

Now, divide both sides by -6 to solve for 'm':

m = 24 / -6

m = -4

So, the solution for this equation is m = -4.

1. 12a - 1 = -a + 25

Let's isolate the variable 'a':

12a + a = 25 + 1

13a = 26

Now, divide both sides by 13 to solve for 'a':

a = 26 / 13

a = 2

So, the solution for this equation is a = 2.

3. 8 + 3b = -7 + 2b

Let's isolate the variable 'b':

8 - (-7) = 2b - 3b

8 + 7 = -b

15 = -b

Now, divide both sides by -1 to solve for 'b':

b = -15

So, the solution for this equation is b = -15.

5. 3y - 3 = 5 - y

Let's isolate the variable 'y':

3y + y = 5 + 3

4y = 8

Now, divide both sides by 4 to solve for 'y':

y = 8 / 4

y = 2

So, the solution for this equation is y = 2.

15. 1. 2x + 3 = x - 6

Let's isolate the variable 'x':

2x - x = -6 - 3

x = -9

So, the solution for this equation is x = -9.

If you have any more equations or need further clarification, please feel free to ask.