Question Find the value of $3a + 2b$ when $a=5$ and $b=-4$ .

Studdy Solution

STEP 1

Assumptions1. The value of $a$ is $5$ . The value of $b$ is $-4$

STEP 2

We need to substitute the given values of $a$ and $b$ into the expression $a +2b$ .
$a +2b =(5) +2(-4)$

STEP 3

Perform the multiplication operations.
$3a +2b =15 -8$

STEP 4

Finally, subtract8 from15 to find the value of the expression.
$3a +2b =15 -8 =7$ The value of $3a +2b$ where $a=$ and $b=-4$ is $7$ .

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