Question

este tema!!! Dau toate punctele si coroana!!!​

Answer 1

1

a) 3 x (-1) +5 =2==>5-3=2==> 2 = 2 A

b) -2 x (-1) +3 =5==> 2 + 3 = 5==>5 = 5 A

c) -(-1) + 3 x(-1) + 5=3==>1-3+5=3==>3 = 3 A

2

a) -4x-36=0==>-4x=36==>x=-9

b)-4x+1= -15==>-4x=-16==>x=4

c)-6x+4=-8==>-6x=-12==>x=2

d)5x+17=2==>5x=-15==>x=-3

e)-3x+4=-5==>-3x=-9==>x=3

f)5x-3=3x+11==>2x=14==>x=7

g)4x+13=3x+15==>x=2

h)5(x-1)=2x+7==>5x-5=2x+7==>3x=12==>x=4

I)3(2x-5)=6(x-1)-9==>6x-15=6x-6-9==>6x-15=6x-15, Adevarata oricare x