morenoangelica325 morenoangelica325
  • 14-10-2020
  • Mathematics
contestada

5a+8+(-2a)=-7
I need help with this question especially because of the parenthesis

Respuesta :

marlynn2002
marlynn2002 marlynn2002
  • 14-10-2020

Answer:

5a+8+(-2a)=-7

5a+8-2a=-7

5a-2a=-7-8

3a=-15

3a/3=-15/3

a=-5

Answer Link
EnergyStudies
EnergyStudies EnergyStudies
  • 14-10-2020

Answer:

a = -5

Step-by-step explanation:

Simplify both sides:

5a + 8 + (-2a) = -7

(5a + -2a) + 8 = -7

3a + 8 = -7

Start solving for a by subtracting 8 from both sides

3a+8-8 = -7 - 8

3a = -15

Next, divide both sides by 3

3a/3 = 1

-15/3 = -5

a = -5

Answer Link

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