Answered

Westonci.ca is the ultimate Q&A platform, offering detailed and reliable answers from a knowledgeable community. Get detailed and precise answers to your questions from a dedicated community of experts on our Q&A platform. Our platform provides a seamless experience for finding reliable answers from a network of experienced professionals.

what is the answer to 7(n+4)=21

Sagot :

okiwix

Answer:

n=-1

Step-by-step explanation:

distribute the 7 to n+4 to get 7n + 28 = 21. subtract 28 from both sides to get 7n = -7. divide both sides by 7 to get n=-1

you could also divide everything by 7 at the beginning to get n+4=3, then subtract 4 from both sides to get n=-1

Amphitrite1040

Hey there!

7(n + 4) = 21

7(n) + 7(4) = 21

7n + 28 = 21

SUBTRACT 28 to BOTH SIDES

7n + 28 - 28 = 21 - 28

CANCEL out: 28 - 28 because it gives you 0

KEEP: 21 - 28 because it helps solve for the n-value

NEW EQUATION: 7n = 21 - 28

SIMPLIFY IT

7n = -7

DIVIDE 7 to BOTH SIDES

7n/7 = -7/7

CANCEL out: 7/7 because that gives you 1

KEEP: -7/7 because it gives you the value of the n-value

NEW EQUATION: n = -7/7

SIMPLIFY IT!

n = -1

Therefore, your answer should be: n = -1

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

We appreciate your time. Please come back anytime for the latest information and answers to your questions. Your visit means a lot to us. Don't hesitate to return for more reliable answers to any questions you may have. Discover more at Westonci.ca. Return for the latest expert answers and updates on various topics.