a=3 b=2 then 2a + 3b
Answers
Answered by
2
Step-by-step explanation:
=2(3)+3(2)
=6+6
=12
Hope it helps mark me as a brillianist pls
Answered by
0
Answer:
Letting
A=a
means that
A/3=a/3.
Then a/3=b/2
means that
a3=b2,
that is,
a=3b2.
So (2a+3b)/(3a−2b)
=2a+3b3a−2b
=2(3b2)+3b3(3b2)−2b
=3b+3b(9b2)−2b
=6b(9b2−4b2)
=6b(5b2)
=(12b2)(5b2)
=12b5b
=125, b≠0.
A/3 = B/2
Solve for a:
A = 3B/2
Now substitute for a in the algebraic expression:
(2a+3b)/(3a-2b)
A = 3b/2
(2(3b/2)+3b)/(3(3b/2)-2b
(6b/2 + 3b)/(9b/2–2b)
Multiply all terms by 2 to eliminate the fractions:
(6b+6b)/(9b-4b)
12b/5b
Divide out the B’s:
12/5
So (2a+3b)/(3a-2b)=12/5
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