Question

equação do 1º grau

a)5x-12=2x+27

b)x+3x=2x+27
2

c)2.(x-3)=4+7x

d)4x-3.(x-1)=3x+5
5

e)4x-7=x+11

f)5x-1=x+11

g)5x+7=2x+14

h)x+2=3x-26
5

i)2x-3=5x
3 4

j)-3+5x=2x+1
5 4 2

Answer 1

a)5x-2x=27+12
3x=39
x=39÷3
x=13

e)4x-x=11-4
3x=7
x=7÷3
x=2,3