Question

1. Rezolvaţi ecuațiile:
a) 2x + 3 = 1
b) 5.X-6=9
c) -2.X + 8 = 20
d) 3.x - 7 = 14​

Answer 1

a) 2x= 1-3

2x= -2

x= -2:2

x= -1

b) 5x=9+6

5x=15

x=15:5

x=3

c)-2x=20-8

-2x=12

-x=6

x=-6

d) 3x=14+7

3x=21

x=21:3

x=7