Question

Resolva as equaçoes:
a)4(x+1)=12
b)5(3-x)-4x=18
c)9x-3(2x+2)=15
d)2,5(x-2)-1,5x=1
e)3,5x+8=2(x7)
f)6(3x+2)-8=-2
g)-3(x-5)-2(2x=1)=18

Answer 1

a)x=2

4x+4=12
4x=8

b)x= -1/3

15-5x-4x=18
-9x=3

c) x=7
9x-6x-6=15
3x = 21

d)x=6
2,5x-5-1,5x=1
x-5=1
x=6

f)-1/3
 
 18x=-2-4
18x=-6