Question

resolver as equacoes
a)5x-10=2x+20
b)8x-3x+100=12x+20
c)10x+4=6x+30
d)7-3x+40=8x+30
e)4x-20=5x+10
f)8-10x=20x+60
g)2(x+3)=30-x
h)3(-2x+5)-5=2x
i)6(-5x+4=3(2x+4)
j)4(x+3)=2(x-1)
k)8(2x-1)=4(x+3)

Answer 1

a) 5x-10=2x+20
    -10-20=2x-5x
     -30=-3x
     x=-30/-3   (-) COM (-) = +
     x= 10

ASSIM POR DIANTE !