Alguem ajuda aq em matemática com cálculos pfv. a) 8(x-3)+2(5-x)=-x b) 2(-2x+3)+5(2-x)=3(2x+3) c) -2(x-5)-3(2x+7)=10-x?
Update:
a) 8(x-3)+2(5-x)=-x
b) 2(-2x+3)+5(2-x)=3(2x+3)
c) -2(x-5)-3(2x+7)=10-x
More Questions From This User See All
Answers & Comments
Verified answer
Ola Sandro
a) 8(x-3)+2(5-x)=-x
8x - 24 + 10 - 2x + x = 0
7x = 14
x = 2
b) 2(-2x+3)+5(2-x)=3(2x+3)
-4x + 6 + 10 - 5x = 6x + 9
15x = 7
x = 7/15
c) -2(x-5)-3(2x+7)=10-x
-2x + 10 - 6x - 21 - 10 + x = 0
7x = 21
x = 3
pronto
a)8x-24+10-2x=-x
8x-2x+x=14
7x=14
x=14/7
x=2
8(x-3)+2(5-x)= -x
8x-24+10-2x= -x
6x-14= -x
6x+x= 14
7x=14
x= 14/7
x= 2
Resolva o resto!!
Espero ter ajudado. Bjin