3 years ago

Here are two equations. k= a+b a+b+k=30 What is the value of k?

Mathematics

1 answer:

Rina8888 [55]3 years ago

5 0

(1) k = a + b
(2) a + b + k = 30

subtitute a + b = k to (2)

k + k = 30

2k = 30 |divide both sides by 2

k = 15

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