# How do you evaluate 2y+9x-7 when y=3 and x=5?

Oct 27, 2015

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#### Explanation:

$2 y + 9 x - 7$ is the expression provided to us.

The values for the variables are $y = 3 \mathmr{and} x = 5$

We substitute the values of the variables provided into the expression:

$2 y + 9 x - 7 = 2 \cdot 3 + 9 \cdot 5 - 7$

$= 6 + 45 - 7$

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