Question

a) 7x-3+x=2
b) 5x-1=3
c) 7-2x+x=4
toate acestea sunt exuatii diferite x nu este acelasi numar<.>>>.

Answer 1

a) 7x-3+x=2
7x+x=2+3
8x=5
x=5/8

b) 5x-1=3
5x=3+1
5x=4
x=4/5

c) 7-2x+x=4
7-4=2x-x
3=3x
x=3:3
x=1