Question

1-Resolva as equaçoes
a)13(2x-3)-5(2-x)=5(-3+6x)
b)2(2x+7)+3(3x-5)=3(4x+5)1
c)3-7(1-2x)=5-1(x+9)
d)1+3x-1(1-2x)+1(-11+7x)=5
e)2(1-5y)+3(-1-y)-4(-7+2y)=-y
f)x-3(4-x)=7x-1(1-x)
POR FAVOR ME AJUDA!!

Answer 1

Resposta:

a) -3,777...

b) 16

c) -1,384...

d) 2

e) 1,35

f) -1,375

Explicação passo-a-passo:

a)26x-39-10-5x= -15+30x

26x-5x-30x= -15+39+10

-9x = 34

x = -34/9

x = -3,777...

b) 4x+14+9x-15=12x+15+1

4x+9x-12x=15+1+15-15

x= 16

c) 3-7-14x=5-x+9

-14x+x=5+9-3+7

-13x= 18

x= -18/13

x= -1,384...

d)1+3x-1-2x-11+7x=5

3x-2x+7x= 5-1+1+11

8x= 16

x= 16/8

x=2

e)2-10y-3-3y+28-8y= -y

-10y-3y-8y+y= -2+3-28

-20y= -27

y= 27/20

y= 1,35

f)x-12+3x=7x-1+x

x-3x-7x-x= -1+12

-8x= 11

x= -11/8

x= -1,375

se tiver algum erro, me desculpe.