Question

Obtenha a soluçao de cada equaçao
a)25x+5=0
b)x(2-1)=10
c)3b+8=2-2b
d)x+3=-x-3

Answer 1

a) 25x = - 5
x = -5/25
x = -1/5

b) 2x - x = 10
x = 10

c) 3b + 2b = 2 - 8
5b = - 6
b = -6/5

d) x + x = - 3 - 3
2x = - 6
x = -6/2
x = -3

Answer 2

Olá, bom dia ☺

Resoluções:

a)

25x + 5 = 0.
25x = - 5.
x = -5/25 : 5/5 = -1/5.

b)

x(2-1)=10
2x - x = 10
x = -10.

c)

3b+8=2-2b
3b + 2b = 2 - 8
5b = -6.
b= -6/5.

d)

x+3=-x-3
x + x = -3 - 3.
2x = -6.
x=-6/2.
x = -3.

Bons estudos :)