You need to solve a system of equations. You decide to use the elimination method. Which of these is not allowed?
2x - 3y = 12
Equation 1
-2x + y = 8
Equation 2
A. Add the left side of equation 2 to the left side of equation 1.
O B. Add equation 2 to equation 1.
C. Multiply equation 2 by 3. Then subtract the result from equation 1.

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1

the answer is 45 i just did it on oddesy ware

30

step-by-step explanation:

times by times

a .4y4

hope this !