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3a=3xa and if a = 5 it would be 3x5 which = 15
2b=2xb and if b = 2 it would be 2x2 which = 4

15+4=19
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Q: What is 3a plus 2b when 5 is a and 2 is b?
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3a + 2b is an expression in algebra. If you make 3a + 2b equal to something then you can find the values of "a" and "b" Lets say you make 3a + 2b equal to 23 3a + 2b = 23 Now find "a" and "b" to make this equation true... 3(5) + 2(4) = 23 15 + 8 = 23 23 = 23 Correct So in this case a=5 and b=4


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