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4 - 6(1 + 4n) = -8n - 34 A) {2} B) {-16} C) { 5 } D) {7} show your work

User Enlyte
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2 Answers

7 votes

Answer:

the answer is n=2 (A)

hope this helps

4 - 6(1 + 4n) = -8n - 34 A) {2} B) {-16} C) { 5 } D) {7} show your work-example-1
User Gopal Prasad
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7.8k points
3 votes

Answer:


\boxed{ \bold{ \huge{ \boxed{ \bold{ \sf{n = 2}}}}}}

Option A is the correct option.

Explanation:


\sf{4 - 6(1 + 4n) = - 8n - 34}

Distribute 6 through the parentheses


\longrightarrow{ \sf{4 - 6 - 24n = - 8n - 34}}

The negative and positive integers are always subtracted but possess the sign of the bigger integer.


\longrightarrow{ \sf{ - 2 - 24n = - 8n - 34}}

Move 8n to left hand side and change its sign

Similarly, move 2 to right hand side and change it's sign


\longrightarrow{ \sf{ - 24n + 8n = - 34 + 2}}

Collect like terms


\longrightarrow{ \sf{ - 16n = - 34 + 2}}

Subtract 2 from 34


\longrightarrow{ \sf{ - 16n = - 32}}

Divide both sides by -16


\longrightarrow{ \sf{ ( - 16n)/( - 16) = ( - 32)/( - 16)}}

Calculate


\longrightarrow{ \sf{n = 2}}

Hope I helped!

Best regards! :D

User Tzunghaor
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