chloelind2003 chloelind2003

05-03-2020
Mathematics

contestada

9a + 15 = 10a - 7
Solve please

Respuesta :

tolaosunrinde tolaosunrinde

05-03-2020

Answer: a = 22

Step-by-step explanation:

9a + 15 = 10a - 7

Step 1: combine like terms

9a - 10a= -7 -15

-1a = -22

a = 22

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xlenanguyen xlenanguyen

05-03-2020

subtract 9a from both sides
9a - 9a + 15 = 10a - 9a + 7
15 = a - 7
add 7 to both sides
15 + 7 = a - 7 + 7
a = 22

Answer Link

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