Question

resolva as seguintes equações a)4X-1=3(X-1)
b)3(X-2)=2X-4
c)2(X-1)=3X+4
d)3(X-1)-7-15
e)7(X-4)=2X-3
f)3(X-2)=4(3-X)
g)3(3X-1)=2(3X+2)
h)7(X-2)=5(X+3)
i)4(X+10)-2(X-5)=0 Me ajuda Pfv haaaaa​

Answer 1

Resposta:

A) 4x-1=3(x-1)

4x-1=3x-3

4x-3x=-3+1

x=-2

B) 3(x-2)=2x-4

3x-6=2x-4

3x-2x=-4+6

x=2

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

2x-2=3x+4

2x-3x=4+2

-x=6(-1)

x=-6

D) 3(x-1)-7-15

3x-3-7-15=0

3x=0+15+7+3

3x=25

x=25÷3

E) 7(x-4)=2x-3

7x-28=2x-3

7x-2x=-3+28

5x=25

x=25=5

x=5

F) 3(x-2)=4(3-x)

3x-6=12-4x

3x+4x=12+6

7x=18

x=18÷7

G) 3(3x-1)=2(3x+2)

9x-3=6x+4

9x-6x=4+3

3x=7

x=7÷3

H) 7(x-2)=5(x+3)

7x-14=5x+15

7x-5x=15+14

2x=29

x=29÷2

I) 4(x+10)-2(x-5)=0

4x+40-2x+10=0

4x-2x=0-40-10

2x=-50

x=-50÷2

x=-25