Question

2. Rezolvati in R ecuatia: d) 5(1+3)=10; g) -4(x-2)= -6 1 j) 3(2x-1)+4=7 1​

Answer 1

Răspuns:

Explicație pas cu pas:

a) 3(x-1)=x+2  ⇒3x-x=2+3  ⇒2x=5  ⇒x=5/2

d) 5(x+3)=10  ⇒5x=10-15  ⇒5x=-5  ⇒x=-1

g) -4(x-2)= -6 ⇒-4x=-6-8  ⇒-4x=-14  ⇒ x=14/4= 7/2   x=7/2

j) 3(2x-1)+4=7  ⇒6x-3+4=7  ⇒6x=7+3-4   ⇒6x=6  ⇒x=1