# How do you evaluate the expression 2(x-y) for x=1 and y=-2?

Oct 1, 2014

Substitute the value of x and y in the given expression;

2$\left(x - y\right)$

given x =1 and y =-2

2 $\left(1 - \left(- 2\right)\right)$

2 $\left(1 + 2\right)$

2.$\left(3\right)$

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