Question

Exercitiul 6 de la a la u

Answer 1

Explicație pas cu pas:

a 14x-5=9

14×=9+5

14×=14

×=14÷14

×=1

faci in acelasi mod la toate pana la (i

j 2(x-1)=4 k) (-5)x-(-8)=8 m)3x+1-x=5

2x-2=4 -5×+8=8 2x+1=5

2x=4+2 -5×=8-8 2x=5-1

2x=6 -5x=0 2x=4

x=6÷2 x=0÷(-5) x=4÷2=2

x=3 x=0

p (x+1)+(x+2)+(x+3)+(x+4)=1+2+3+4

x+1+x+2+x+3+x+4=10

4x+10=10

4×=10-10

4×=0

×=0÷4=0

r 5x-3=4x s)-2x+1=2×-1

5x-4×=3 -2×-2×=-1-1

x=3 -4×=0

x=0