Question

resolver as equacoes abaixo
a) 10x16=14x + 8
b)2(×-3)=-3(×-3)
c) 4(5×-3)-64(3-×)-3(12×-4)=96
d) 5(×+1)+6(×+2)=9(×+3)
me ajudaaah por favor

Answer 1

Olá!

a) 10x+16=14x + 8
=>10x-14x=8-16
=>-4x=-8/(-1)
=> x=8/4
=> x=2

b)2(×-3)=-3(×-3)
=> 2x-6=-3x+9
=> 2x+3x=9+6
=> 5x=15
=> x=15/5
=> x=3

c) 4(5×-3)-64(3-×)-3(12×-4)=96
=> 20x-12-192+64x-36x+12=96
=> 20x+64x-36x=96+12+192-12
=> 48x=288
=> x=288/48
=> x=6

d) 5(×+1)+6(×+2)=9(×+3)
=> 5x+5+6x+12=9x+27
=> 5x+6x-9x=27-5-12
=> 2x=10
=> x=10/2
=> x=5

Espero ter ajudado!