2-5(4n-6)=-132 not really sure how to do this one ..

Use order of operations rules to evaluate all terms of -2-5(4n-6)=-132, and then solve for n:

Must multiply -5(4n-6) first: -20n + 30. Then we have -2 - 20n + 30 = -132.

Adding 2 to both sides, we get -20n + 30 = -130, or -20n = -160.

Solving for n, n = 160/20 = 8 = n

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.

180°

step-by-step explanation:

sum of equilateral triangle=180°

< n=60°

< m=120°°[angle supplementary of equilateral angle]

< m+< r+< x=360°(sum of exterior angle of triangle)