To simplify the expression 0.5q - 0.2(5q + 9), we first distribute the -0.2 to the terms inside the parentheses:
0.5q - 0.2(5q) - 0.2(9)
Next, we can simplify each term:
0.5q - 1q - 1.8
Now, we can combine like terms:
(0.5q - 1q) - 1.8
-0.5q - 1.8
Thus, the simplified expression is -0.5q - 1.8.
0.5q−0.2(5q+9)
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