Respuesta :

3a + 5a = 55 - 15
8a = 40
a = 5

please give Brainly

Answer: a=5

Step-by-step explanation:

Rearrange terms:

3a+15=-5a+55

Subtract 15 from both sides of the equation:

3a+15-15=-5a+55-15

Subtract the numbers:

15-15 55-15

3a=-5+40

Add 5a to both sides of the equation:

3a+5a=-5a+40+5a

Simplify:

8a=40

Divide both sides of the equation by the same term:

8a/8=40/8

Simplify: a=5

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