Question

Resolva as equações
3(y+20)=y-18
4(x+6)=3(22+x)
3√x+3=5
2x-32=x(4+3)
2x-3=11

Answer 1

Explicação passo-a-passo:

3(y+20)=y-18

3y + 60 = y - 18

3y - y = -18 - 60

2y = -78

y = -78/2

y = -39

4(x+6)=3(22+x)

4x + 24 = 66 + 3x

4x - 3x = 66 - 24

x = 42

3√x+3=5

x + 3 = 5³

x = 125 - 3

x = 122

2x-32=x(4+3)

2x - 32 = 4x + 12

2x - 4x = 12 + 32

2x = -44

x = -44/2

x = -22

2x-3=11

2x = 11 + 3

x = 14/2

x = 7

atte Colossoblack

Answer 2

3(y+20)=y-18

3y+60=y-18

3y-y=-18-60

2y=-78

y=-78/2

y=>-39

4(x+6)=3(22+x)

4x+24=66+3x

4x-3x=66-24

x=>42

3√x+3=5

Dividindo ambos os membros

√x+3=5/3

x+3=25/9

x=25/9-3

x=25-27/9

x=>-2/9

2x-32=x(4+3)

2x-32=4x+3x

2x-4x-3x=32

-5x=32

x=>-32/5

2x-3=11

2x=11+3

2x=14

x=14/2

x=>7