👤

45 : (-x) - 8 = -13
4x-6 = 2x - 14
7x+15 = 4x - 6
8x-5 = 4x - 17
10-2x = 3x -15
13-7x = 23 - 25
39 -9x = 21 - 3x
5* ( 2x+3) = 7x - 21
( 3x - 2 ) = 8x - 28
PLEASE!!! URGGEEENTTT!


Răspuns :

45 : (-x)=-13+8   
45 : (-x)= -5
-x =45:(-5)
-x=-9
x=9
7x-4x=-6-15
3x=-21
x=-7
8x-4x=-17+5
4x=-12
x=-3
-2x-3x=-15-10
-5x=-25
x=5
-7x=-2-13
-7x=-15
x=15/7
-9x+3x=21-39
-6x=-18
x=3
10x+15=7x-21
3x=-21-15
3x=-39
x=-13
3x-8x=-28+2
-5x=-26
x=26/5