4 years ago

How to solve 3f+2g=30 and f+2g=26

1 answer:

3 0

3f + 2g = 30 . . . . (1)
f + 2g = 26 . . . . (2)

(1) - (2) => 2f = 4 => f = 4/2 = 2.

From (2), 2 + 2g = 26 => 2g = 26 - 2 = 24 => g = 24/2 = 12.

Therefore, f = 2 and g = 12

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