Question

ayuden men porfa :c ​

Answer 1

Explicación paso a paso:

a) 7x - 15 = 20

7x = 20 + 15

7x = 35

x = 5

b) 25x - 8 = 26

25x = 26 + 8

25x = 34

x = 34/25

c) 4x - 10 = 26

4x = 26 + 10

4x = 36

x = 9

d) 26x - 18 = 10

26x = 10 + 18

26x = 28

x =14/13