Question

Resolva as equaçoes:
a)4x+(7x+11)=-11
b)5x-(-x+22)=-4
c)11x+(-3x+10)=4x+2
d)11x-(-3x+10)=4x+2

Answer 1

a) 4x+(7x+11)=-11
 4x+7x+11= -11
11x+11= -11
11x= -11 -11
11x= -22
x= -22/11
x = -2

b) 5x-(-x+22)=-4
5x+x-22=-4
6x=-4+22
6x=18
x = 3

c)11x+(-3x+10)= 4x+2
11x -3x +10= 4x+2
11x -3x -4x = 2 -10
4x = -8
x= -8/4
x= -2

d)11x-(-3x+10)= 4x+2
11x+3x-10= 4x+2
11x +3x -4x= 2+10
10x=12
x=12/10
x=1,2 ou 6/5