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If 5a-3b=7 and b=2a-4 what is the value of a

If 5a-3b=7 and b=2a-4 what is the value of a
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4 votes
If 5a-3b=7 and b=2a-4 what is the value of a

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User Stephan Celis
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8.1k points

1 Answer

5 votes

Answer:a=5, b=6

Explanation:

Substitute b = 2a - 4 into 5a - 3b = 7:5a - 3(2a - 4) = 75a - 6a + 12 = 7a = 5

answered
User Eatcrayons
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8.2k points
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