Question

4a+5a-8b-2b+9a+3a=0
equations

Answer 1

$4a + 5a - 8b -2 b + 9a+ 3a = 0 \\ (4a + 5a + 9a+ 3a) - (8b + 2b) = 0 \\ 21a - 10b = 0 \\ a = \frac{10b}{21}$
hope this helps.......,..

Answer 2

Hope it helps u!
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