Question

Por favor me ajudem! Obg!
Resolvam:

b/2= 3
a-5=2a
y-15=-15

Answer 1

b/2= 3

 b      =   3
------
  2

b = 2.3
b = 6

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a - 5 = 2a
- 5 = 2a - a
- 5 = a
a = - 5

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y - 15 = - 15
y = - 15 + 15
y = 0

Answer 2

b/2 = 3 --- b= 3 x 2 ----- b = 6 A - 5 = 2A --- A - 2A = 5 ---- A = -5 Y - 15 = -15 ---- y = -15 + 15 --- y = 0 Espero ter ajudado!