Question

Resolva as equações:

a)3x-7=2x+5

b)7x+8=4x-10

c)4x-15=2x+3

d)2x-4-8=4X

e)3x=x+1+7

f)2x+5-5x=1

g)5+6x=5x+2

Answer 1

a) 3x+2x = 5+7
5x=12
x=12/5

b) 7x-4x=-10-8
3x=-18
x= -18/3= -6

c) 4x- 2x=15+3
2x=18
x=18/2=9

d)2x-4x=8+4
-2x=12
x= 12/-2=-6