Answer:
a = 3.5
Explanation:
= ( cross- multiply )
5(2a - 1) = 2(4a + 1) ← distribute parenthesis on both sides
10a - 5 = 8a + 2 ( subtract 8a from both sides )
2a - 5 = 2 ( add 5 to both sides )
2a = 7 ( divide both sides by 2 )
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