Seudónimo Seudónimo

04-02-2021
Mathematics

contestada

Solve for a.
4/a+4 =-1/a+9

Solve for a 4a4 1a9 class=

Respuesta :

clarch19 clarch19

05-02-2021

Answer:

a = -8

Step-by-step explanation:

you can solve this proportion by cross-multiplying:

4(a + 9) = -1(a + 4)

now distribute to eliminate parentheses

4a + 36 = -1a - 4

5a + 36 = -4

5a = -40

a = -8

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