7X -2=-4+5
-2X=-4+3X
5 (X+3)-2 (X-1)=20
7X+10=6X-5
14P+24=10P+2P+30
2-5 (W-1)-3=0
18A-43=65
23Y=16=14-17Y
10B-5 (1+Y)=3 (2Y-2)-20
Respostas
Resposta:Segue as contas baixo na explicação
Explicação passo-a-passo:
a)7x -2=-4+5 b)-2x=-4+3x c)5(x+3)-2 (x-1)=20 d)7x+10=6x-5
7x-2=1 -2x-3x=-4 5x+15-2x+2=20 7x-6x=-5-10
7x=1+2 -5x=-4(-1) 3x+17=20 x=-15
7x=3 5x=4 3x=20-17
x=3/7 x=4/5 3x=3
x=3/3
x=1
e)14p+24=10p+2p+30 f)2-5(w-1)-3=0 g)18a-43=65
14p+24=12p+30 2-5w+5-3=0 18a=65+43
14p-12p=30-24 7-3-5w=0 18a=108
2p=6 4-5w=0 a=108/18
p=6/2 -5w=-4(-1) a=6
p=3 5w=4
w=4/5
h)23y=16=14-17y i)10y-5.(1+y)=3.(2y-2)-20
23y-16=14-17y 10y-5-5y=6y-6-20
23y+17y=14+16 5y-5=6y-26
40y=30 5y-6y=-26+5
y=30/40:10/10 -y=-21(-1)
y=3/4 y=21