Ineed to remember how to solve this problem

You have to move all terms involving the variable on one side, and all constant terms on the other side.

To move a term from a side to the other, you have to change its side.

So, for example, if you move 4x from left to right, it will become -4x (you're actually subtracting 4x from both sides):

Similarly, add 5 to both side to get

Finally, divide both sides by 3:

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°

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