Question

Resolva as equações:
A) 7(x-2)= 5(x+3)



B) 2(x-5)+4(x-1)=0



C) 3(2x-1)=-2(x+3)




D) 7(x-1)-2(x-5)=x-5





Qual o valor de X?

Me mandem as respostas com cálculos

Answer 1

Oi
a) 7(x-2)=5(x+3)
7x-14=5x+15
7x -5x=15+14
2x=29
x= 29/2

b)
2(x-5)+4(x-1)=0
2x-10+4x-4=0
2x+4x=+4+10
6x=14
x=14/6 ÷2
x=7/3

c) 3(2x-1)= -2(x+3)
6x-3=-2x-6
6x+2x=-6+3
8x=-3
x= - 3/8

d)
7(x-1)-2(x-5)=x-5
7x-7-2x+10=x-5
7x-2x-x=-5-10+7
4x=-8
x= -8/4
x = - 2

Bons estudos