-10 since the parentheses mean multiply and multiplying a negative with a positive gives you a negative.
Theorem
In a triangle, the measure of an exterior angle equals the sum of the measures of its two remote interior angles.
x + y = z
4n - 18 + n + 8 = 133 - 6n
5n - 10 = 133 - 6n
11n = 143
n = 13
z = 133 - 6n = 133 - 6(13) = 133 - 78 = 55
Answer: C. 55
Answer:
the answer is 31.9 years
Step-by-step explanation:
initial mass, 
= 150 gram
half life, 
= 32 years
new mass = half of initial mass = M = 0.5
formula , M = 
where x is the number of years required.
therefore 0.5 = 
therefore -0.0217 x = 
therefore x = 
= 31.942
Detailed Answer:
An algebraic equation can be defined as a mathematical statement in which two expressions are set equal to each other.
Example of Algebraic Equations:
Eg. 1) x + 10 = 20
Eg. 2) 5x + 10 = 20
Eg. 3) 2x + 2 = 4
