Question

resolva as ecuaçoes:

a.)5 x+1=36 b.)7 x=4x + 5 c.)5x - 7 = 3x - 6

d.)16 -11 x + 12 = -15x c.)2x + 0,8 - 3,5= x

Answer 1

a. 5x+1=36 | 5x=36-1 | x=35/5=7
b. 7x=4x+5 | 7x-4x=5 | x=5/3
c. 5x-7=3x-6 | 5x-3x=-6+7 | x=1/2
d. 16-11x+12=-15x | -11x+15x=-16-12 | 4x=-28 | x=-28/4=(-7)
e. 2x+0,8-3,5=x | 2x-x=-0,8+3,5 | x=2,7

Se puder marcar como melhor resposta ficarei grato, boa noite! ^^

Answer 2

a) 5x+1=36
5x=36-1
5x=35
x=35/5
x=7

b) 7x=4x +5
7x - 4x= 5
3x=5
x=5/3

c) 5x-7=3x-6
5x-3x=-6+7
2x=1
x=1/2

d) 16-11x+12=-15x
-11x+15x=-12-16
4x= -28
x= -28/4
x= -7

c) 2x+0,8-3,5=x
2x-x= -0,8+3,5
x=2,7