Question

me ajudem nessa

a)3.(x+5)=24

b)2.(x-1)+7=21

c)2.(x-2)=5.(x+7)

d)2.(x-3)+4.(x-1)=2

e)2.(x-6)=-3.(5+x)

f)3.(x+10)-2.(x-5)=0

g)3.(x-1)-(2x-4)=1

h)7.(x-1)-2.(x-5)=x-10

Answer 1

Explicação passo-a-passo:

Resolução!!!

3.(x+5)=24

3x+15=24

3x=24-15

3x=9

x=9/3

x=3

2.(x-1)+7=21

2x-2+7=21

2x+5=21

2x=21-5

2x=16

x=16/2

x=8

2.(x-2)=5.(x+7)

2x-4=5x+35

2x-5x=35+4

-3x=39

x=-39/3

x=-13

2.(x-3)+4.(x-1)=2

2x-6+4x-4=2

6x-10=2

6x=2+10

6x=12

x=12/6

x=2

2.(x-6)=-3.(5+x)

2x-12=-15-3x

2x+3x=-15+12

5x=-3

x=-3/5

3.(x+10)-2.(x-5)=0

3x+30-2x+10=0

x+40=0

x=0-40

x=-40

3.(x-1)-(2x-4)=1

3x-3-2x+4=1

x+1=1

x=1-1

x=0

7.(x-1)-2.(x-5)=x-10

7x-7-2x+10=x-10

5x+3=x-10

5x-x=-10-3

4x=-13

x=-13/4

Espero ter ajudado!