How do you solve -8( - 2- 5n ) - ( - 6n + 2) = 148(25n)(6n+2)=14?

3 Answers
Jan 12, 2018

n=0n=0

Explanation:

1) Multiply into the brackets.
-8(-2-5n)-(-6n+2)=16+40n+6n-2=148(25n)(6n+2)=16+40n+6n2=14

2) Combine like terms
16+40n+6n-2=46n+14=1416+40n+6n2=46n+14=14

Solve using opposite operations
46n+14=1446n+14=14

46n+14-color(red)(14)=14-color(red)(14)46n+1414=1414

46n=046n=0

(46n)/color(red)(46)=0/color(red)(46)46n46=046

n=0n=0

Jan 12, 2018

n=0n=0

Explanation:

-8(-2-5n)-(-6n+2)=148(25n)(6n+2)=14

16+40n+6n-2=1416+40n+6n2=14

Combine like-terms

46n+14=1446n+14=14

46n=046n=0

n=0/46=0n=046=0

Jan 12, 2018

n=0n=0

Explanation:

"distribute the brackets on left side of equation"distribute the brackets on left side of equation

16+40n+6n-2=1416+40n+6n2=14

rArr46n+14=1446n+14=14

"subtract 14 from both sides"subtract 14 from both sides

46ncancel(+14)cancel(-14)=14-14

rArr46n=0rArrn=0

color(blue)"As a check"

Substitute this value into the left side of the equation and if equal to the right side then it is the solution.

-8(-2)-(+2)=16-2=14

rArrn=0" is the solution"