Solve the equation. Then check your solution. 6 = negative 2 (10 n + 7)
Mathematics · College · Tue Nov 03 2020
Answered on
Lets try and write it mathematically.
-2(10n+7) = 6
Multiply -2 with the variables and numbers inside the bracket so we can remove the bracket.
-20n-14=6
Put the variables on one side and the numbers on the other side. The numbers or variables that will switch sides, will have their sign switched as well from a + into a - and vice versa.
-20n=6+14
-20n=20
Divide both sides with -20.
-20n/(-20) = 20/(-20)
n=-1