Question

Rozwiąż równania :

a) 4x+(5x-2)=5(2x-1)

b) x-(2x+1)=5x+1

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

d) 2(x-1)=3x-2

Z góry dziękuje ;**

Answer 1

a) 4x+(5x-2)=5(2x-1)
4x + 5x - 2 = 10x - 5
-x = -3        /:(-1)
x = 3

b) x-(2x+1)=5x+1
x - 2x - 1 = 5x + 1
-6x = 2       /:(-6)
x = -1/3

c) 4(2x-3)=2(3x+2)
8x - 12 = 6x + 4
2x = 16         /:2
x = 8


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

Answer 2

a)4x+5x-2=10x-5  9x-2=10x-5/+2  9x=10x-3/-10x  -x=-3/:-1  x=3             b)x-2x-1=5x+1  -x-1=5x+1/+1 -x=5x+2/-5x -6x=2/:-6  x=-1/3   C)8x-12=6x+4/+12  8x=6x+16/-6x 2x=16/:2 x=8  d)2x-2=3x-2/+2 2x=3x+0/-3x -x=0/:-1 x=0