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How do you evaluate the expression x + 6x + 2y + 1 + 9y x=6, y=9?

1 Answer

Jun 18, 2018

$142$ $142$

Explanation:

$simplify the expression by collecting like terms then$ $"simplify the expression by collecting like terms then"$
$substitute the given values into it$ $"substitute the given values into it"$

$x + 6 x + 2 y + 1 + 9 y$ $x+6x+2y+1+9y$

$= 7 x + 11 y + 1$ $=7x+11y+1$

$= (7 \times 6) + (11 \times 9) + 1$ $=(7xxcolor(red)(6))+(11xxcolor(blue)(9))+1$

$= 42 + 99 + 1 = 142$ $=42+99+1=142$

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