5a - 6 + 3a = 5(2) - 6 + 3(2) = 10 - 6 + 6 = 10
5 a − 6 + 3 a = 8 a − 6 8 ⋅ 2 + 6 = 16 − 6 = 10
To evaluate the expression 5 a − 6 + 3 a for a = 2 , substitute the value into the expression, perform the calculations, and combine the terms. The result is 10 .
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