Question

2x-15=13 7y-25=45 130-4x=70

Answer 1

2x-15=13  

2x = 13 + 15

2x = 28

x = 28 : 2

x = 14

7y-25=45

7y = 45 + 25

7y = 70

y = 70 : 7

y = 10

130-4x=70

4x = 130 - 70

4x = 60

x = 60 : 4

x = 15

Answer 2

To solve the given equations, follow these steps:

1. 2x - 15 = 13 Add 15 to both sides to isolate the term containing x: 2x = 13 + 15 2x = 28 Divide both sides by 2 to solve for x: x = 28 / 2 x = 14

2. 7y - 25 = 45 Add 25 to both sides to isolate the term containing y: 7y = 45 + 25 7y = 70 Divide both sides by 7 to solve for y: y = 70 / 7 y = 10

3. 130 - 4x = 70 Subtract 130 from both sides to isolate the term containing x: -4x = 70 - 130 -4x = -60 Divide both sides by -4 to solve for x: x = -60 / -4 x = 15

The solutions for the equations are: x = 14, y = 10, and x = 15.