Question

a)3(2x-3)-x=5
b)2(x-1)+3(x+1)=4(x+2)
c)3(3x+8)-5x=x-3
d)(2x-1=3(x+10)
e)2(x-3)+8x+4=5(x+2)

ME AJUDEM POR FAVORE PARA AMANHÃ

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Answer 1

Resposta:

a)3(2x-3)-x=5

6x - 9 - x = 5

6x - x = 5 + 9

5x = 14

x=14/5

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

2x - 2 + 3x + 3 = 4x + 8

2x + 3x - 4x = 8 + 2 - 3

1x = 7

x = 7/1

c)3(3x+8)-5x=x-3

9x + 24 - 5x = x - 3

9x - x - 5x = - 24 - 3

3x = - 27

x=- 27/3

x=-9

d)(2x-1)=3(x+10)

2x - 1 = 3x + 30

2x - 3x = 30 + 1

-1x = 31 (-1)

1x = 31

x= 31/1

e)2(x-3)+8x+4=5(x+2)

2x - 6 + 8x + 4 = 5x + 10

2x + 8x - 5x = 10 + 6 - 4

5x = 12

x = 12 /5

Answer 2

Resposta:

a)5,5

B)4

c) -9

d)31

e)2,5

Explicação passo-a-passo:

a)3×(2x-3)-x=5

3x-6-x=5

-x+3x=5+6

2x=11

x=11/2

x=5,5

B)2×(x-1)+3×(x+1)=4×(x+2)

2x-2+3+3x+3=4x+8

2x+3x-4x=8+2-3-3

x=4

c)3×(3x+8)-5x=x-3

9x+24-5x=x-3

9x-5x-x=-3-24

3x=-27

x=-27/3

x=-9

d)(2x-1)=3(x+10)

2x-1=3x+30

-3x+2x=30+1

-x=31

e)2×(x-3)+8x+4=5×(x+2)

2x-6+2x+4=5x+10

2x+8x-5x=10+6-4

5x=12

x=12/5

x=2,5