Question

DAU COROANĂ!Faceți ex 5 din imagine după acest exemplu
1-8x=x-5
1-8x-x=x-5x
1-9x=-5
1-9x=-5. 9×x=6
9x=1-(-5). x=6:9
9x=6

Answer 1

5. a) 2x-3=3x+5
2x-3x=5+3
-x=8
x=-8

b) -5x+2=-4x+1
-5x+4x=1-2
-x=-1
x=1

c) 5x+17=3x-31
5x-3x=-31-17
2x=-48
x=-24

d) 3x-9+x=2x-27
4x-9=2x-27
4x-2x=-27+9
2x=-18
x=-9

e) 8x-5x+32=2x-51
3x+32=2x-51
3x-2x=-51-32
x=-83

f) 5x+13-2x=9x+22-5x
3x+13=4x+22
3x-4x=22-13
-x=9
x=-9