Work Step by Step
We first plug in the values given for the variables, and then we solve: $3x - 2y + xy$ $= 3(0.5) - 2(-0.9) + (0.5)(-0.9)$ $= 1.5 +1.8 -0.45$ $= 3.3 - 0.45$ $= 2.85$
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