Question

a) 8X+1 - 5X-5
b) - 4X + 10 = 10 - 2x
c) 3X +5=9 + 4 X
d)2(x+1)=6
e)5(x-1)=2x+7
f)3(x+2)=2(x+4)
g)6=4(x+1)-2(x+2)
h)4=5(x+1)-6
i)3(2x-5)=6(x-1)-9

va rog si cu fiecare pas ​

Answer 1

Răspuns:

a).8X+1-5X-5=0

3X-4=0

X=-4/3

b).-4X+2X☆+10-10=0

-2X=0,X=0

c). 3X-4X=9-5

-X=4 împărțim prin -1

X=-4

d).2X+2=6

2X=6-2

2X=4,

X=4/2=2

e).5X-5=2X+7

5X-2X=7-5

3X=2

X=2/3

f).3X+6=2X+8

3X-2X=8-6

X=2

g).6=(4X+4)-2X-4

6=4X+4-2X-4

6=2X

X=6/2,X=3

h).4=5X+5-6

4=5X-1

4+1=5X

X=5/5,X=1

i).6X-15=6X-6-9

6X-6X=15-6-9

6X-6X=15-15

0=0