Question

resolva as seguintes equações de 1 grau a)7x-24=3x+20
b)5+2(3x-1)=7x+6
c)9x=32-13​

Answer 1

a) 7x - 24 = 3x + 20

7x - 3x = 20 + 24

4x = 44

x = 44 / 4

x = 11

b) 5 + 2(3x - 1) = 7x + 6

5 + 6x - 2 = 7x + 6

6x - 7x = 6 - 5 + 2

-x = 3

c) 9x = 32 - 13

9x = 19

x = 19 / 9