Answer:
Distribute, then combine like terms, subtract 10 from both sides of the equation, simplify, divide both sides of the equation by the same term, and simplify to get your solution.
Step-by-step explanation:
1.) Distribute
6−2(4−5)=40
6−8+10=40
2.) Combine like terms
6a-8a+10=40
-2a+10=40
3.) Subtract 10 from both sides of the equation
-2a+10=40
-2a+10-10=40-10
4.) Simplify
subtract the numbers
-2a+10-10=40-10
-2a=40-10
subtract the numbers
-2a=40-10
-2a=30
-2a=30
5.) Divide both sides of the equation by the same term
-2a=30
[tex]\frac{-2a}{-2} =\frac{30}{-2}[/tex]
6.) Simplify
cancel terms that are in both the numerator or denominator
[tex]\frac{-2a}{-2} =\frac{30}{-2}[/tex]
a=[tex]\frac{30}{-2}[/tex]
Divide the numbers
a=[tex]\frac{30}{-2}[/tex]
a=-15
a=-15
7.) Solution
a=-15