What is the answer to 5/9(8+c)=-20

2 answers:

8 0

5/9(8+c)= -20
⇒ 40/9+ 5/9c= -20
⇒ 5/9c= -20 -40/9
⇒ 5/9c= -24 4/9
⇒ c= -24 4/9/(5/9)
⇒ c= -44

Final answer: c= -44~

snow_tiger [21]3 years ago

5 0

$\frac{5}{9} (8 + c) = -20 \\ \\ \frac{5(8 + c)}{9} = -20 \\ \\ 5(8 + c) = -20 \times 9 \\ \\ 5(8 + c) = -180 \\ \\ 8 + c = - \frac{180}{5} \\ \\ 8 + c = -36 \\ \\ c = -36 - 8 \\ \\ c = -44 \\ \\ Answer: \fbox {c = -44}$

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