Question

(x+1)-(x-1)=1





1/2(x-1)=4





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






-2(x+1/2)-3(x+1/3)=0

Answer 1

a)(x+1)-(x-1)=1
x+1-x+1=1
x-x=1-1-1
0=-1

równanie sprzeczne

b)1/2(x-1)=4
1/2x-1/2=4
1/2x=4 + 1/2 |x 2
x= 9/4

x = 2 1/4

c)-1/4(2+x)=3/4x
-0,5-0,25x=0,75x
-0,5=0,75x+0,25x
x=-0,5

d)-2(x+1/2)-3(x+1/3)=0
-2x-1-3x-1=0
-5x=2/:(-5)
x=-2/5

Pozdrawiam ;)

Answer 2

(x+1)-(x-1)=1
x+1-x+1 = 1
x-x = 1-1-1
0 = -1

1/2(x-1)=4
½x-½ =4
½x = 4+½
½x = 4½ / *2
x = ⁹/₂ * ½
x= ⁹/₄
x = 2¼

-1/4(2+x)=3/4x
-½ -¼x = ¾x
-¼x-¾x = ½
-⁴/₄ x = ½
-x = ½ / :(-1)
x= -½

-2(x+1/2)-3(x+1/3)=0
-2x- 1-3x-1 = 0
-2x-3x = 1+1
-5x = 2 / :(-5)
x = -⅖