Question

2х-15=13 7y-25=45 130-4х=70

Answer 1

2x=13+15
2x=28
x=28/2
x=14
7y=45+25
7y=70
y=70/7
y=10
-4x=70-130
-4x=-60
x=-60/(-4)
x=15

Answer 2

Вот держи....................

Answer 3

To solve these equations, follow the steps for each one:

1. 2x - 15 = 13

Step 1: Add 15 to both sides to isolate the term with 'x'. 2x - 15 + 15 = 13 + 15 2x = 28

Step 2: Divide both sides by 2 to find the value of 'x'. x = 28 / 2 x = 14

So, the solution for the first equation is x = 14.

2. 7y - 25 = 45

Step 1: Add 25 to both sides to isolate the term with 'y'. 7y - 25 + 25 = 45 + 25 7y = 70

Step 2: Divide both sides by 7 to find the value of 'y'. y = 70 / 7 y = 10

So, the solution for the second equation is y = 10.

3. 130 - 4x = 70

Step 1: Subtract 130 from both sides to isolate the term with 'x'. 130 - 4x - 130 = 70 - 130 -4x = -60

Step 2: Divide both sides by -4 to find the value of 'x'. x = -60 / -4 x = 15

So, the solution for the third equation is x = 15.