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siniylev [52]
3 years ago
6

What does a equal -5(6a+21)=-15

Mathematics
1 answer:
borishaifa [10]3 years ago
7 0
Step 1 : Simplify both sides
-5(6a+21)=-15
(-5)(6a)+(-5)(21)=-15
-30a-105=-15
Step 2 : Add 105 to both sides
-30a-105+105=-15+105
-30a=90
Step 3 : Divide both sides by -30
-30a=90
—————
-30 -30

a = -3
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9 nickels

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$1.25 can only be 17 coins if there were 9 nickels and 8 dimes.


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a bottle of ketchup contains 40 oz of ketchup. How many 1/2 oz servings can you get out of one bottle?
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saul85 [17]

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6 0
3 years ago
A dozen bran muffins cost $9.48. Which equation represents the cost, y, of x muffins
swat32

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12y+9.48x=0

Step-by-step explanation:

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