Question

Resolva as equações do 1ºgrau:

a) 3x + 5 = 23

b) 5x – 1 = 14

c) 5x – 12 = 3x​

Answer 1

a) 3x+5=23
3x=23-5
3x=18
x=6

b) 5x-1=14
5x=14+1
5x=15
X=3

C) 5x-12=3x
5x+3x=12
2x=12
x=6

Esper