What is the answer here?

yes

Step-by-step explanation:

you plug in (2,8) so 8 = y and 2=x.

so 8=4(2) 8=8 which is correct

then 8= 2+6 8=8 which is correct

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