Question

Resolva as 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)3(2x-1)=-2(x+3)

j)5x-3(x+2)=15

k)2x+3x+9=8(6-x)

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

Por favor, coloca o passo a passo, preciso disso pra inda hoje, por favor

Answer 1

$a) 4x-1=3(x-1)\\4x-1 = 3x-3\\4x-3x = -3 +1\\x = -2$

$b)3(x-2)=2x-4\\3x-6= 2x-4\\3x-2x= - 4+6\\x= 2$

$c)2(x-1)=3x+4\\2x-2=3x+4\\3x-2x= -2-4\\x= - 6$

$d)3(x-1)-7=15\\3x-3-7=15\\3x=15+10\\x= 25/3$

$g)3(3x-1)=2(3x+2)\\9x-3= 6x=4\\9x-6x=4+3\\3x=7\\x=7/3$

$h)7(x-2)=5(x+3)\\7x-14 = 5x+15\\7x-5x= 15+14\\2x = 29\\x= 29/2$

$i)3(2x-1)=-2(x+3)\\6x-3= -2x-6\\6x+2x= -6+3\\8x=-3\\x=-3/8$

$j)5x-3(x+2)=15\\5x-3x-6=15\\2x=15+6\\2x=21\\x=21/2$

$k)2x+3x+9=8(6-x)\\5x=48-8x-9\\5x+8x= 39\\13x=39\\x= 39/13\\x= 3$

$l)4(x+10)-2(x-5)=0\\4x+40-2x+10=0\\2x= - 50\\x= - 50/2\\x= -25$

Espero ter ajudado,

Bons estudos!