Question

8x-4x+5=25 851:(13+x)=37 (y-12)•36=1260 (x-12):13=82

Answer 1

1) 4х + 5= 25
4х= 25:5
4х= 5
х= 5 : 4
х - 0.8

2) 13+х = 851:37
13+х= 23
х= 23-13
х= 10
3) у-12= 1260:36
у-12= 35
у= 35+12
у=47
4)х-12= 83•13
х-12= 1079
х= 1079+12
х= 1091

Answer 2

8х-4х+5=25

4х+5=25

4х=25-5

4х=20

х=20:4

х=5

851:(13+х)=37

13+х=851:37

13+х=23

х=23-13

х=10

(y-12)*36=1260

y-12=1260:36

y-12=35

y=35+12

y=47

(x-12):13=82

x-12=82*13

х-12=1066

х=1066+12

х=1078

Answer 3

To solve these equations, we will need to perform some algebraic operations.

Starting with the first equation:

8x - 4x + 5 = 25

Combining like terms on the left side:

4x + 5 = 25

Subtracting 5 from both sides:

4x = 20

Dividing both sides by 4:

x = 5

So the solution to the first equation is x = 5.

Moving on to the second equation:

851:(13+x)=37

To solve for x, we need to isolate it on one side of the equation. To do that, we can multiply both sides by (13 + x):

851 = 37(13 + x)

Simplifying the right side:

851 = 481 + 37x

Subtracting 481 from both sides:

370 = 37x

Dividing both sides by 37:

x = 10

So the solution to the second equation is x = 10.

Next, we have:

(y-12)•36=1260

To solve for y, we need to isolate it on one side of the equation. We can start by dividing both sides by 36:

y - 12 = 35

Adding 12 to both sides:

y = 47

So the solution to the third equation is y = 47.

Finally, we have:

(x-12):13=82

To solve for x, we can multiply both sides by 13:

x - 12 = 1066

Adding 12 to both sides:

x = 1078

So the solution to the fourth equation is x = 1078.