Add and simplify.
(-6-n +2n?) +(8-3n - 10n)

2-12n

Step-by-step explanation:

(-6-n+2n)+(8-3n-10n)

-6-n+2n+8-3n-10n

-6+8-n+2n-3n-10n

2-n+2n-3n-10n

2+n-3n-10n

2-2n-10n

2-12n

we know that

applying the law of sines

°

so

∠j=18°

∠k=29°

∠l=180-(18+29)=133°

the answer part a) is

the measure of angle k is  ≈29°

part b)  the measure of angle k could also be

(180-29)=151°

so

∠j=18°

∠k=151°

∠l=180-(18+151)=11°

the answer part b) is

the measure of angle k could also be 151°

read more on -

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation: