Question

resolva as equaçoes
a)x+15=11
b)19x=266
c)x/13=-2
d)1,5x-6=0
e)1,5x+4=19
f)x/5-3=10

Answer 1

a)
x+15=11
x = 11 - 15
x = - 4
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b)
19x=266
x = 266/19
x = 14
----------------------------
c)
x/13 = - 2

 x  =  - 2
13 

x = 13.(-2)
x = - 26
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d)
1,5x - 6 = 0 
1,5x = 6  (10)
15x = 60
x = 60/15
x = 4
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e)
1,5x+4=19

1,5 x + 4 = 19 (10)
15x + 40 = 190
15x = 190 - 40
15x = 150
x = 150/15
x = 10
-------------------------------
f)
x/5-3=10

x - 3 = 10
5

x  - 15 = 50
   5         5

x - 15 = 50
x = 50 + 15
x = 65

Answer 2

Resposta:

Explicação passo-a-passo:

X+15=11