Question

a) 9x - 6 +10x = 7x +15 +5x
b) 5x + 2.(4-x) = 18 + 4.5

pfv alg responde aí man ​

Answer 1

a) 9x - 6 + 10x = 7x + 15 + 5x

19x - 6 = 12 x + 15

19x - 12x = 15 + 6

7x = 21

x = 21/7

x = 3

b) 5x + 2 . (4 - x) = 18 + 4 . 5

5x + 8 - 2x = 18 + 20

3x = 38 - 8

3x = 30

x = 30/3

x = 10