30+40+2u =6u-30- 2.2z+32 = 4.5-3.2
52 +3 Er = x
+
2.3y+3.2-y=2.1 +1.3y +1.1
ft + += =
20+4=32-27
No Solution
One Solution
Infinitely Many Solutions

o

Step-by-step explanation:

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

mean, 40.6

step-by-step explanation: