Question

resolver as equações
a.-x=9
b.-7x=14
c.15=-3x
d.6x=2x+16
e.2x-5=x+1
f.4x-10=2x+2

Answer 1

Olá,

Vamos lá,

a.-x=9 * (-1)
 x = -9


b.-7x=14
 x = -14/7
 x =  -2

c.15=-3x
3x = - 15
x = -15/3
x = -5

d.6x=2x+16
6x - 2x = 16
4x = 16
x = 16/4
x = 4

e.2x-5=x+1
2x - x = 1 + 5
x = 6

f.4x-10=2x+2
4x - 2x = 2 + 10
2x = 12
x = 12/2
x = 6

Answer 2

a.-x=9 (-1)

x= - 9

b.-7x=14

x= 14/-7

x= - 2

c.15=-3x

x= 15/-3

x= - 5

d.6x=2x+16

6x - 2x = 16

4x = 16

x= 16/4

x= 4

e.2x-5=x+1

2x - x= 1 + 5

x= 6

f.4x-10=2x+2

4x - 2x = 2 + 10

2x = 12

x= 12/2

x= 6