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How do you evaluate the expression 4x + 5y + 7x + 5 + 2y x=2,y=3?

1 Answer

Sep 8, 2015

$= 48$ $=color(blue)(48$

Explanation:

The expression given is
$4 x + 5 y + 7 x + 5 + 2 y$ $4x +5y +7x +5 +2y$

The values for the variables given are
$x = 2, y = 3$ $x=color(blue)(2), y=color(blue)(3$

Now we substitute the values for $x$ $x$ and $y$ $y$ in the expression:
$4 x + 5 y + 7 x + 5 + 2 y$ $4x +5y +7x +5 +2y$

$= 4 \cdot 2 + 5 \cdot 3 + 7 \cdot 2 + 5 + 2 \cdot 3$ $=4 * 2 + 5*3 +7*2 +5 +2*3$

$= 8 + 15 + 14 + 5 + 6$ $=8 + 15 + 14 +5 + 6$

$= 48$ $=color(blue)(48$

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