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4 years ago

Please help :( I have trouble understanding this... [Solve for x] - 7 = 3/a ( x + 5)

Mathematics

1 answer:

algol134 years ago

8 0

Answer:

(-7a-15)/3

Step-by-step explanation:

- 7 = 3/a ( x + 5)

open the bracket

-7 =3/a(x)+ 3/a(5)

-7 = 3x/a+ 15/a

l.c.m is a

-7= 3x+15/a

cross multiply

-7a = 3x+15

-7a-15 = 3x

(-7a-15)/3 = x

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