Question

A) x-1=-7 , b) 2(4-x)+1=-3(x-2),va rogggg ajutați-mă repede

Answer 1

a)

x-1=-7

x=-7+1

x=-6

b)

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

2•4-2x+1=-3x+3•2

8-2x+1=-3x+6

9-2x=-3x+6

-2x=-3x+6-9

-2x=-3x-3

-2x+3x=-3

x=-3

Answer 2

Răspuns:

Explicație pas cu pas:

a) x=1-7    ⇒x=-6

b) 2(4-x)+1=-3(x-2)     ⇒8-2x+1=-3x+6      ⇒3x-2x=6-9    ⇒x=-3